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Finding the Fourth Proportional to 102,560.70, 153,841.05 and 55,904.70

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Solution

The fourth proportional to 102,560.70, 153,841.05 and 55,904.70 is: 83,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,560.70 : 153,841.05 = 55,904.70 : x
  2. Step 2: Convert to fraction form
    102,560.70/153,841.05 = 55,904.70/x
  3. Step 3: Cross multiply
    102,560.70x = 153,841.05 × 55,904.70
  4. Step 4: Simplify right side
    102,560.70x = 8,600,437,747.94
  5. Step 5: Solve for x
    x = 8,600,437,747.94/102,560.70
  6. Step 6: Final answer
    x = 83,857.05

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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.