Home / 126,577.20-189,519.92-91,074

Finding the Fourth Proportional to 126,577.20, 189,519.92 and 91,074

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Solution

The fourth proportional to 126,577.20, 189,519.92 and 91,074 is: 136,362.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,577.20 : 189,519.92 = 91,074 : x
  2. Step 2: Convert to fraction form
    126,577.20/189,519.92 = 91,074/x
  3. Step 3: Cross multiply
    126,577.20x = 189,519.92 × 91,074
  4. Step 4: Simplify right side
    126,577.20x = 17,260,337,194.08
  5. Step 5: Solve for x
    x = 17,260,337,194.08/126,577.20
  6. Step 6: Final answer
    x = 136,362.13

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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.