Home / 138,181.60-207,260.48-84,132.27

Finding the Fourth Proportional to 138,181.60, 207,260.48 and 84,132.27

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Solution

The fourth proportional to 138,181.60, 207,260.48 and 84,132.27 is: 126,191.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,181.60 : 207,260.48 = 84,132.27 : x
  2. Step 2: Convert to fraction form
    138,181.60/207,260.48 = 84,132.27/x
  3. Step 3: Cross multiply
    138,181.60x = 207,260.48 × 84,132.27
  4. Step 4: Simplify right side
    138,181.60x = 17,437,294,663.69
  5. Step 5: Solve for x
    x = 17,437,294,663.69/138,181.60
  6. Step 6: Final answer
    x = 126,191.15

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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.