Home / 126,724.56-189,909.18-98,515.50

Finding the Fourth Proportional to 126,724.56, 189,909.18 and 98,515.50

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Solution

The fourth proportional to 126,724.56, 189,909.18 and 98,515.50 is: 147,635.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,724.56 : 189,909.18 = 98,515.50 : x
  2. Step 2: Convert to fraction form
    126,724.56/189,909.18 = 98,515.50/x
  3. Step 3: Cross multiply
    126,724.56x = 189,909.18 × 98,515.50
  4. Step 4: Simplify right side
    126,724.56x = 18,708,997,822.29
  5. Step 5: Solve for x
    x = 18,708,997,822.29/126,724.56
  6. Step 6: Final answer
    x = 147,635.14

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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.