Home / 126,042.20-189,136.20-47,164.40

Finding the Fourth Proportional to 126,042.20, 189,136.20 and 47,164.40

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Solution

The fourth proportional to 126,042.20, 189,136.20 and 47,164.40 is: 70,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,042.20 : 189,136.20 = 47,164.40 : x
  2. Step 2: Convert to fraction form
    126,042.20/189,136.20 = 47,164.40/x
  3. Step 3: Cross multiply
    126,042.20x = 189,136.20 × 47,164.40
  4. Step 4: Simplify right side
    126,042.20x = 8,920,495,391.28
  5. Step 5: Solve for x
    x = 8,920,495,391.28/126,042.20
  6. Step 6: Final answer
    x = 70,773.88

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1.5x scale

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.