Home / 102,113.60-153,170.46-31,998.38

Finding the Fourth Proportional to 102,113.60, 153,170.46 and 31,998.38

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Solution

The fourth proportional to 102,113.60, 153,170.46 and 31,998.38 is: 47,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,113.60 : 153,170.46 = 31,998.38 : x
  2. Step 2: Convert to fraction form
    102,113.60/153,170.46 = 31,998.38/x
  3. Step 3: Cross multiply
    102,113.60x = 153,170.46 × 31,998.38
  4. Step 4: Simplify right side
    102,113.60x = 4,901,205,818.00
  5. Step 5: Solve for x
    x = 4,901,205,818.00/102,113.60
  6. Step 6: Final answer
    x = 47,997.58

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.