Home / 84,117.10-126,060.45-68,565.10

Finding the Fourth Proportional to 84,117.10, 126,060.45 and 68,565.10

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Solution

The fourth proportional to 84,117.10, 126,060.45 and 68,565.10 is: 102,753.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117.10 : 126,060.45 = 68,565.10 : x
  2. Step 2: Convert to fraction form
    84,117.10/126,060.45 = 68,565.10/x
  3. Step 3: Cross multiply
    84,117.10x = 126,060.45 × 68,565.10
  4. Step 4: Simplify right side
    84,117.10x = 8,643,347,360.30
  5. Step 5: Solve for x
    x = 8,643,347,360.30/84,117.10
  6. Step 6: Final answer
    x = 102,753.75

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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.