Home / 102,220.31-141,060.89-56,897.13

Finding the Fourth Proportional to 102,220.31, 141,060.89 and 56,897.13

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Solution

The fourth proportional to 102,220.31, 141,060.89 and 56,897.13 is: 78,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,220.31 : 141,060.89 = 56,897.13 : x
  2. Step 2: Convert to fraction form
    102,220.31/141,060.89 = 56,897.13/x
  3. Step 3: Cross multiply
    102,220.31x = 141,060.89 × 56,897.13
  4. Step 4: Simplify right side
    102,220.31x = 8,025,959,353.95
  5. Step 5: Solve for x
    x = 8,025,959,353.95/102,220.31
  6. Step 6: Final answer
    x = 78,516.29

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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.