Home / 123,565.50-170,520.39-66,976.88

Finding the Fourth Proportional to 123,565.50, 170,520.39 and 66,976.88

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Solution

The fourth proportional to 123,565.50, 170,520.39 and 66,976.88 is: 92,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,565.50 : 170,520.39 = 66,976.88 : x
  2. Step 2: Convert to fraction form
    123,565.50/170,520.39 = 66,976.88/x
  3. Step 3: Cross multiply
    123,565.50x = 170,520.39 × 66,976.88
  4. Step 4: Simplify right side
    123,565.50x = 11,420,922,845.98
  5. Step 5: Solve for x
    x = 11,420,922,845.98/123,565.50
  6. Step 6: Final answer
    x = 92,428.09

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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.