Home / 165,138.35-227,892.08-89,686.85

Finding the Fourth Proportional to 165,138.35, 227,892.08 and 89,686.85

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Solution

The fourth proportional to 165,138.35, 227,892.08 and 89,686.85 is: 123,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,138.35 : 227,892.08 = 89,686.85 : x
  2. Step 2: Convert to fraction form
    165,138.35/227,892.08 = 89,686.85/x
  3. Step 3: Cross multiply
    165,138.35x = 227,892.08 × 89,686.85
  4. Step 4: Simplify right side
    165,138.35x = 20,438,921,879.90
  5. Step 5: Solve for x
    x = 20,438,921,879.90/165,138.35
  6. Step 6: Final answer
    x = 123,768.48

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1.5x scale

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.