Home / 102,255.43-141,111.15-59,240.78

Finding the Fourth Proportional to 102,255.43, 141,111.15 and 59,240.78

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Solution

The fourth proportional to 102,255.43, 141,111.15 and 59,240.78 is: 81,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,255.43 : 141,111.15 = 59,240.78 : x
  2. Step 2: Convert to fraction form
    102,255.43/141,111.15 = 59,240.78/x
  3. Step 3: Cross multiply
    102,255.43x = 141,111.15 × 59,240.78
  4. Step 4: Simplify right side
    102,255.43x = 8,359,534,592.70
  5. Step 5: Solve for x
    x = 8,359,534,592.70/102,255.43
  6. Step 6: Final answer
    x = 81,751.50

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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.