Home / 136,932.96-205,229.88-77,588.72

Finding the Fourth Proportional to 136,932.96, 205,229.88 and 77,588.72

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Solution

The fourth proportional to 136,932.96, 205,229.88 and 77,588.72 is: 116,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,932.96 : 205,229.88 = 77,588.72 : x
  2. Step 2: Convert to fraction form
    136,932.96/205,229.88 = 77,588.72/x
  3. Step 3: Cross multiply
    136,932.96x = 205,229.88 × 77,588.72
  4. Step 4: Simplify right side
    136,932.96x = 15,923,522,668.80
  5. Step 5: Solve for x
    x = 15,923,522,668.80/136,932.96
  6. Step 6: Final answer
    x = 116,287.00

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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.