Home / 102,478.80-141,399.24-62,213.76

Finding the Fourth Proportional to 102,478.80, 141,399.24 and 62,213.76

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Solution

The fourth proportional to 102,478.80, 141,399.24 and 62,213.76 is: 85,841.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,478.80 : 141,399.24 = 62,213.76 : x
  2. Step 2: Convert to fraction form
    102,478.80/141,399.24 = 62,213.76/x
  3. Step 3: Cross multiply
    102,478.80x = 141,399.24 × 62,213.76
  4. Step 4: Simplify right side
    102,478.80x = 8,796,978,381.54
  5. Step 5: Solve for x
    x = 8,796,978,381.54/102,478.80
  6. Step 6: Final answer
    x = 85,841.93

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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.