Home / 137,349.27-205,654.77-87,157.62

Finding the Fourth Proportional to 137,349.27, 205,654.77 and 87,157.62

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Solution

The fourth proportional to 137,349.27, 205,654.77 and 87,157.62 is: 130,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,349.27 : 205,654.77 = 87,157.62 : x
  2. Step 2: Convert to fraction form
    137,349.27/205,654.77 = 87,157.62/x
  3. Step 3: Cross multiply
    137,349.27x = 205,654.77 × 87,157.62
  4. Step 4: Simplify right side
    137,349.27x = 17,924,380,294.85
  5. Step 5: Solve for x
    x = 17,924,380,294.85/137,349.27
  6. Step 6: Final answer
    x = 130,502.19

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Why These Related Problems?

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