Home / 181,922.40-273,013.20-76,816.80

Finding the Fourth Proportional to 181,922.40, 273,013.20 and 76,816.80

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Solution

The fourth proportional to 181,922.40, 273,013.20 and 76,816.80 is: 115,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,922.40 : 273,013.20 = 76,816.80 : x
  2. Step 2: Convert to fraction form
    181,922.40/273,013.20 = 76,816.80/x
  3. Step 3: Cross multiply
    181,922.40x = 273,013.20 × 76,816.80
  4. Step 4: Simplify right side
    181,922.40x = 20,972,000,381.76
  5. Step 5: Solve for x
    x = 20,972,000,381.76/181,922.40
  6. Step 6: Final answer
    x = 115,279.92

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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.