Home / 126,575.20-189,516.92-91,072

Finding the Fourth Proportional to 126,575.20, 189,516.92 and 91,072

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Solution

The fourth proportional to 126,575.20, 189,516.92 and 91,072 is: 136,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,575.20 : 189,516.92 = 91,072 : x
  2. Step 2: Convert to fraction form
    126,575.20/189,516.92 = 91,072/x
  3. Step 3: Cross multiply
    126,575.20x = 189,516.92 × 91,072
  4. Step 4: Simplify right side
    126,575.20x = 17,259,684,938.24
  5. Step 5: Solve for x
    x = 17,259,684,938.24/126,575.20
  6. Step 6: Final answer
    x = 136,359.14

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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.