Home / 121,149.12-181,753.92-42,264

Finding the Fourth Proportional to 121,149.12, 181,753.92 and 42,264

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Solution

The fourth proportional to 121,149.12, 181,753.92 and 42,264 is: 63,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,149.12 : 181,753.92 = 42,264 : x
  2. Step 2: Convert to fraction form
    121,149.12/181,753.92 = 42,264/x
  3. Step 3: Cross multiply
    121,149.12x = 181,753.92 × 42,264
  4. Step 4: Simplify right side
    121,149.12x = 7,681,647,674.88
  5. Step 5: Solve for x
    x = 7,681,647,674.88/121,149.12
  6. Step 6: Final answer
    x = 63,406.55

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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.