Home / 102,440.98-141,358.20-57,114.70

Finding the Fourth Proportional to 102,440.98, 141,358.20 and 57,114.70

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Solution

The fourth proportional to 102,440.98, 141,358.20 and 57,114.70 is: 78,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,440.98 : 141,358.20 = 57,114.70 : x
  2. Step 2: Convert to fraction form
    102,440.98/141,358.20 = 57,114.70/x
  3. Step 3: Cross multiply
    102,440.98x = 141,358.20 × 57,114.70
  4. Step 4: Simplify right side
    102,440.98x = 8,073,631,185.54
  5. Step 5: Solve for x
    x = 8,073,631,185.54/102,440.98
  6. Step 6: Final answer
    x = 78,812.51

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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.