Home / 102,723.47-141,772.47-59,115.12

Finding the Fourth Proportional to 102,723.47, 141,772.47 and 59,115.12

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Solution

The fourth proportional to 102,723.47, 141,772.47 and 59,115.12 is: 81,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,723.47 : 141,772.47 = 59,115.12 : x
  2. Step 2: Convert to fraction form
    102,723.47/141,772.47 = 59,115.12/x
  3. Step 3: Cross multiply
    102,723.47x = 141,772.47 × 59,115.12
  4. Step 4: Simplify right side
    102,723.47x = 8,380,896,281.17
  5. Step 5: Solve for x
    x = 8,380,896,281.17/102,723.47
  6. Step 6: Final answer
    x = 81,586.97

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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.