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Finding the Fourth Proportional to 145,024.46, 217,527.92 and 86,234.26

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Solution

The fourth proportional to 145,024.46, 217,527.92 and 86,234.26 is: 129,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,024.46 : 217,527.92 = 86,234.26 : x
  2. Step 2: Convert to fraction form
    145,024.46/217,527.92 = 86,234.26/x
  3. Step 3: Cross multiply
    145,024.46x = 217,527.92 × 86,234.26
  4. Step 4: Simplify right side
    145,024.46x = 18,758,357,691.73
  5. Step 5: Solve for x
    x = 18,758,357,691.73/145,024.46
  6. Step 6: Final answer
    x = 129,346.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.