Home / 103,449.20-155,159.40-33,335.60

Finding the Fourth Proportional to 103,449.20, 155,159.40 and 33,335.60

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Solution

The fourth proportional to 103,449.20, 155,159.40 and 33,335.60 is: 49,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,449.20 : 155,159.40 = 33,335.60 : x
  2. Step 2: Convert to fraction form
    103,449.20/155,159.40 = 33,335.60/x
  3. Step 3: Cross multiply
    103,449.20x = 155,159.40 × 33,335.60
  4. Step 4: Simplify right side
    103,449.20x = 5,172,331,694.64
  5. Step 5: Solve for x
    x = 5,172,331,694.64/103,449.20
  6. Step 6: Final answer
    x = 49,998.76

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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.