Home / 181,780.83-272,544.72-80,523.90

Finding the Fourth Proportional to 181,780.83, 272,544.72 and 80,523.90

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Solution

The fourth proportional to 181,780.83, 272,544.72 and 80,523.90 is: 120,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,780.83 : 272,544.72 = 80,523.90 : x
  2. Step 2: Convert to fraction form
    181,780.83/272,544.72 = 80,523.90/x
  3. Step 3: Cross multiply
    181,780.83x = 272,544.72 × 80,523.90
  4. Step 4: Simplify right side
    181,780.83x = 21,946,363,778.81
  5. Step 5: Solve for x
    x = 21,946,363,778.81/181,780.83
  6. Step 6: Final answer
    x = 120,729.80

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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.