Home / 181,932.80-272,899.20-82,140.80

Finding the Fourth Proportional to 181,932.80, 272,899.20 and 82,140.80

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Solution

The fourth proportional to 181,932.80, 272,899.20 and 82,140.80 is: 123,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,932.80 : 272,899.20 = 82,140.80 : x
  2. Step 2: Convert to fraction form
    181,932.80/272,899.20 = 82,140.80/x
  3. Step 3: Cross multiply
    181,932.80x = 272,899.20 × 82,140.80
  4. Step 4: Simplify right side
    181,932.80x = 22,416,158,607.36
  5. Step 5: Solve for x
    x = 22,416,158,607.36/181,932.80
  6. Step 6: Final answer
    x = 123,211.20

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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.