Home / 151,125.20-226,862.40-81,141.20

Finding the Fourth Proportional to 151,125.20, 226,862.40 and 81,141.20

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Solution

The fourth proportional to 151,125.20, 226,862.40 and 81,141.20 is: 121,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,125.20 : 226,862.40 = 81,141.20 : x
  2. Step 2: Convert to fraction form
    151,125.20/226,862.40 = 81,141.20/x
  3. Step 3: Cross multiply
    151,125.20x = 226,862.40 × 81,141.20
  4. Step 4: Simplify right side
    151,125.20x = 18,407,887,370.88
  5. Step 5: Solve for x
    x = 18,407,887,370.88/151,125.20
  6. Step 6: Final answer
    x = 121,805.55

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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.