Home / 115,280.20-172,920.30-101,456.20

Finding the Fourth Proportional to 115,280.20, 172,920.30 and 101,456.20

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Solution

The fourth proportional to 115,280.20, 172,920.30 and 101,456.20 is: 152,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280.20 : 172,920.30 = 101,456.20 : x
  2. Step 2: Convert to fraction form
    115,280.20/172,920.30 = 101,456.20/x
  3. Step 3: Cross multiply
    115,280.20x = 172,920.30 × 101,456.20
  4. Step 4: Simplify right side
    115,280.20x = 17,543,836,540.86
  5. Step 5: Solve for x
    x = 17,543,836,540.86/115,280.20
  6. Step 6: Final answer
    x = 152,184.30

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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.