Home / 151,101.20-226,826.40-81,117.20

Finding the Fourth Proportional to 151,101.20, 226,826.40 and 81,117.20

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Solution

The fourth proportional to 151,101.20, 226,826.40 and 81,117.20 is: 121,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,101.20 : 226,826.40 = 81,117.20 : x
  2. Step 2: Convert to fraction form
    151,101.20/226,826.40 = 81,117.20/x
  3. Step 3: Cross multiply
    151,101.20x = 226,826.40 × 81,117.20
  4. Step 4: Simplify right side
    151,101.20x = 18,399,522,454.08
  5. Step 5: Solve for x
    x = 18,399,522,454.08/151,101.20
  6. Step 6: Final answer
    x = 121,769.53

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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.