Home / 148,182.40-204,531.24-91,561.78

Finding the Fourth Proportional to 148,182.40, 204,531.24 and 91,561.78

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Solution

The fourth proportional to 148,182.40, 204,531.24 and 91,561.78 is: 126,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,182.40 : 204,531.24 = 91,561.78 : x
  2. Step 2: Convert to fraction form
    148,182.40/204,531.24 = 91,561.78/x
  3. Step 3: Cross multiply
    148,182.40x = 204,531.24 × 91,561.78
  4. Step 4: Simplify right side
    148,182.40x = 18,727,244,400.01
  5. Step 5: Solve for x
    x = 18,727,244,400.01/148,182.40
  6. Step 6: Final answer
    x = 126,379.68

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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.