Home / 126,459.59-189,633.78-67,281.17

Finding the Fourth Proportional to 126,459.59, 189,633.78 and 67,281.17

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Solution

The fourth proportional to 126,459.59, 189,633.78 and 67,281.17 is: 100,892.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,459.59 : 189,633.78 = 67,281.17 : x
  2. Step 2: Convert to fraction form
    126,459.59/189,633.78 = 67,281.17/x
  3. Step 3: Cross multiply
    126,459.59x = 189,633.78 × 67,281.17
  4. Step 4: Simplify right side
    126,459.59x = 12,758,781,641.75
  5. Step 5: Solve for x
    x = 12,758,781,641.75/126,459.59
  6. Step 6: Final answer
    x = 100,892.17

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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.