Home / 120,350.66-180,489.02-83,149.79

Finding the Fourth Proportional to 120,350.66, 180,489.02 and 83,149.79

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Solution

The fourth proportional to 120,350.66, 180,489.02 and 83,149.79 is: 124,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.66 : 180,489.02 = 83,149.79 : x
  2. Step 2: Convert to fraction form
    120,350.66/180,489.02 = 83,149.79/x
  3. Step 3: Cross multiply
    120,350.66x = 180,489.02 × 83,149.79
  4. Step 4: Simplify right side
    120,350.66x = 15,007,623,694.56
  5. Step 5: Solve for x
    x = 15,007,623,694.56/120,350.66
  6. Step 6: Final answer
    x = 124,699.14

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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.