Home / 145,419.52-218,134.14-40,229.68

Finding the Fourth Proportional to 145,419.52, 218,134.14 and 40,229.68

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Solution

The fourth proportional to 145,419.52, 218,134.14 and 40,229.68 is: 60,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419.52 : 218,134.14 = 40,229.68 : x
  2. Step 2: Convert to fraction form
    145,419.52/218,134.14 = 40,229.68/x
  3. Step 3: Cross multiply
    145,419.52x = 218,134.14 × 40,229.68
  4. Step 4: Simplify right side
    145,419.52x = 8,775,466,649.28
  5. Step 5: Solve for x
    x = 8,775,466,649.28/145,419.52
  6. Step 6: Final answer
    x = 60,345.86

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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.