Home / 165,078.20-227,807.90-89,626.70

Finding the Fourth Proportional to 165,078.20, 227,807.90 and 89,626.70

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Solution

The fourth proportional to 165,078.20, 227,807.90 and 89,626.70 is: 123,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,078.20 : 227,807.90 = 89,626.70 : x
  2. Step 2: Convert to fraction form
    165,078.20/227,807.90 = 89,626.70/x
  3. Step 3: Cross multiply
    165,078.20x = 227,807.90 × 89,626.70
  4. Step 4: Simplify right side
    165,078.20x = 20,417,668,723.76
  5. Step 5: Solve for x
    x = 20,417,668,723.76/165,078.20
  6. Step 6: Final answer
    x = 123,684.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.