Home / 126,402.56-189,659.20-59,890.16

Finding the Fourth Proportional to 126,402.56, 189,659.20 and 59,890.16

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Solution

The fourth proportional to 126,402.56, 189,659.20 and 59,890.16 is: 89,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,402.56 : 189,659.20 = 59,890.16 : x
  2. Step 2: Convert to fraction form
    126,402.56/189,659.20 = 59,890.16/x
  3. Step 3: Cross multiply
    126,402.56x = 189,659.20 × 59,890.16
  4. Step 4: Simplify right side
    126,402.56x = 11,358,719,833.47
  5. Step 5: Solve for x
    x = 11,358,719,833.47/126,402.56
  6. Step 6: Final answer
    x = 89,861.47

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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.