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Finding the Fourth Proportional to 181,779.83, 272,543.22 and 80,522.90

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Solution

The fourth proportional to 181,779.83, 272,543.22 and 80,522.90 is: 120,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,779.83 : 272,543.22 = 80,522.90 : x
  2. Step 2: Convert to fraction form
    181,779.83/272,543.22 = 80,522.90/x
  3. Step 3: Cross multiply
    181,779.83x = 272,543.22 × 80,522.90
  4. Step 4: Simplify right side
    181,779.83x = 21,945,969,087.02
  5. Step 5: Solve for x
    x = 21,945,969,087.02/181,779.83
  6. Step 6: Final answer
    x = 120,728.30

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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.