Home / 107,439.52-161,159.07-28,553.75

Finding the Fourth Proportional to 107,439.52, 161,159.07 and 28,553.75

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Solution

The fourth proportional to 107,439.52, 161,159.07 and 28,553.75 is: 42,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,439.52 : 161,159.07 = 28,553.75 : x
  2. Step 2: Convert to fraction form
    107,439.52/161,159.07 = 28,553.75/x
  3. Step 3: Cross multiply
    107,439.52x = 161,159.07 × 28,553.75
  4. Step 4: Simplify right side
    107,439.52x = 4,601,694,989.22
  5. Step 5: Solve for x
    x = 4,601,694,989.22/107,439.52
  6. Step 6: Final answer
    x = 42,830.56

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1.5x scale

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.