Home / 131,778.52-181,854.42-71,349.16

Finding the Fourth Proportional to 131,778.52, 181,854.42 and 71,349.16

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Solution

The fourth proportional to 131,778.52, 181,854.42 and 71,349.16 is: 98,461.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,778.52 : 181,854.42 = 71,349.16 : x
  2. Step 2: Convert to fraction form
    131,778.52/181,854.42 = 71,349.16/x
  3. Step 3: Cross multiply
    131,778.52x = 181,854.42 × 71,349.16
  4. Step 4: Simplify right side
    131,778.52x = 12,975,160,109.29
  5. Step 5: Solve for x
    x = 12,975,160,109.29/131,778.52
  6. Step 6: Final answer
    x = 98,461.87

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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.