Home / 126,452.20-174,509.10-72,737.20

Finding the Fourth Proportional to 126,452.20, 174,509.10 and 72,737.20

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Solution

The fourth proportional to 126,452.20, 174,509.10 and 72,737.20 is: 100,380.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,452.20 : 174,509.10 = 72,737.20 : x
  2. Step 2: Convert to fraction form
    126,452.20/174,509.10 = 72,737.20/x
  3. Step 3: Cross multiply
    126,452.20x = 174,509.10 × 72,737.20
  4. Step 4: Simplify right side
    126,452.20x = 12,693,303,308.52
  5. Step 5: Solve for x
    x = 12,693,303,308.52/126,452.20
  6. Step 6: Final answer
    x = 100,380.25

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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.