Home / 126,403.56-189,660.70-59,891.16

Finding the Fourth Proportional to 126,403.56, 189,660.70 and 59,891.16

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Solution

The fourth proportional to 126,403.56, 189,660.70 and 59,891.16 is: 89,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,403.56 : 189,660.70 = 59,891.16 : x
  2. Step 2: Convert to fraction form
    126,403.56/189,660.70 = 59,891.16/x
  3. Step 3: Cross multiply
    126,403.56x = 189,660.70 × 59,891.16
  4. Step 4: Simplify right side
    126,403.56x = 11,358,999,329.41
  5. Step 5: Solve for x
    x = 11,358,999,329.41/126,403.56
  6. Step 6: Final answer
    x = 89,862.97

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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.