Home / 143,874.01-198,671.50-90,251.20

Finding the Fourth Proportional to 143,874.01, 198,671.50 and 90,251.20

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Solution

The fourth proportional to 143,874.01, 198,671.50 and 90,251.20 is: 124,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,874.01 : 198,671.50 = 90,251.20 : x
  2. Step 2: Convert to fraction form
    143,874.01/198,671.50 = 90,251.20/x
  3. Step 3: Cross multiply
    143,874.01x = 198,671.50 × 90,251.20
  4. Step 4: Simplify right side
    143,874.01x = 17,930,341,280.80
  5. Step 5: Solve for x
    x = 17,930,341,280.80/143,874.01
  6. Step 6: Final answer
    x = 124,625.30

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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.