Home / 121,561.29-182,320.75-54,985.83

Finding the Fourth Proportional to 121,561.29, 182,320.75 and 54,985.83

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Solution

The fourth proportional to 121,561.29, 182,320.75 and 54,985.83 is: 82,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,561.29 : 182,320.75 = 54,985.83 : x
  2. Step 2: Convert to fraction form
    121,561.29/182,320.75 = 54,985.83/x
  3. Step 3: Cross multiply
    121,561.29x = 182,320.75 × 54,985.83
  4. Step 4: Simplify right side
    121,561.29x = 10,025,057,764.97
  5. Step 5: Solve for x
    x = 10,025,057,764.97/121,561.29
  6. Step 6: Final answer
    x = 82,469.16

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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.