Home / 126,247.90-174,148.64-80,909.78

Finding the Fourth Proportional to 126,247.90, 174,148.64 and 80,909.78

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Solution

The fourth proportional to 126,247.90, 174,148.64 and 80,909.78 is: 111,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,247.90 : 174,148.64 = 80,909.78 : x
  2. Step 2: Convert to fraction form
    126,247.90/174,148.64 = 80,909.78/x
  3. Step 3: Cross multiply
    126,247.90x = 174,148.64 × 80,909.78
  4. Step 4: Simplify right side
    126,247.90x = 14,090,328,149.70
  5. Step 5: Solve for x
    x = 14,090,328,149.70/126,247.90
  6. Step 6: Final answer
    x = 111,608.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.