Home / 136,758.24-188,816.40-88,381.80

Finding the Fourth Proportional to 136,758.24, 188,816.40 and 88,381.80

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Solution

The fourth proportional to 136,758.24, 188,816.40 and 88,381.80 is: 122,025.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,758.24 : 188,816.40 = 88,381.80 : x
  2. Step 2: Convert to fraction form
    136,758.24/188,816.40 = 88,381.80/x
  3. Step 3: Cross multiply
    136,758.24x = 188,816.40 × 88,381.80
  4. Step 4: Simplify right side
    136,758.24x = 16,687,933,301.52
  5. Step 5: Solve for x
    x = 16,687,933,301.52/136,758.24
  6. Step 6: Final answer
    x = 122,025.07

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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.