Home / 126,387.60-189,639.98-55,300.86

Finding the Fourth Proportional to 126,387.60, 189,639.98 and 55,300.86

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Solution

The fourth proportional to 126,387.60, 189,639.98 and 55,300.86 is: 82,976.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,387.60 : 189,639.98 = 55,300.86 : x
  2. Step 2: Convert to fraction form
    126,387.60/189,639.98 = 55,300.86/x
  3. Step 3: Cross multiply
    126,387.60x = 189,639.98 × 55,300.86
  4. Step 4: Simplify right side
    126,387.60x = 10,487,253,984.38
  5. Step 5: Solve for x
    x = 10,487,253,984.38/126,387.60
  6. Step 6: Final answer
    x = 82,976.92

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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.