Home / 291,561.20-437,340.02-75,419.92

Finding the Fourth Proportional to 291,561.20, 437,340.02 and 75,419.92

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Solution

The fourth proportional to 291,561.20, 437,340.02 and 75,419.92 is: 113,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,561.20 : 437,340.02 = 75,419.92 : x
  2. Step 2: Convert to fraction form
    291,561.20/437,340.02 = 75,419.92/x
  3. Step 3: Cross multiply
    291,561.20x = 437,340.02 × 75,419.92
  4. Step 4: Simplify right side
    291,561.20x = 32,984,149,321.20
  5. Step 5: Solve for x
    x = 32,984,149,321.20/291,561.20
  6. Step 6: Final answer
    x = 113,129.42

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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.