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Finding the Fourth Proportional to 117,152.92, 161,710.46 and 71,212.40

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Solution

The fourth proportional to 117,152.92, 161,710.46 and 71,212.40 is: 98,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,152.92 : 161,710.46 = 71,212.40 : x
  2. Step 2: Convert to fraction form
    117,152.92/161,710.46 = 71,212.40/x
  3. Step 3: Cross multiply
    117,152.92x = 161,710.46 × 71,212.40
  4. Step 4: Simplify right side
    117,152.92x = 11,515,789,961.70
  5. Step 5: Solve for x
    x = 11,515,789,961.70/117,152.92
  6. Step 6: Final answer
    x = 98,297.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.