Home / 131,654.10-181,681.92-71,224.58

Finding the Fourth Proportional to 131,654.10, 181,681.92 and 71,224.58

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Solution

The fourth proportional to 131,654.10, 181,681.92 and 71,224.58 is: 98,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.10 : 181,681.92 = 71,224.58 : x
  2. Step 2: Convert to fraction form
    131,654.10/181,681.92 = 71,224.58/x
  3. Step 3: Cross multiply
    131,654.10x = 181,681.92 × 71,224.58
  4. Step 4: Simplify right side
    131,654.10x = 12,940,218,445.59
  5. Step 5: Solve for x
    x = 12,940,218,445.59/131,654.10
  6. Step 6: Final answer
    x = 98,289.52

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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.