Home / 168,542.20-252,977.10-131,505.40

Finding the Fourth Proportional to 168,542.20, 252,977.10 and 131,505.40

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Solution

The fourth proportional to 168,542.20, 252,977.10 and 131,505.40 is: 197,385.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,542.20 : 252,977.10 = 131,505.40 : x
  2. Step 2: Convert to fraction form
    168,542.20/252,977.10 = 131,505.40/x
  3. Step 3: Cross multiply
    168,542.20x = 252,977.10 × 131,505.40
  4. Step 4: Simplify right side
    168,542.20x = 33,267,854,726.34
  5. Step 5: Solve for x
    x = 33,267,854,726.34/168,542.20
  6. Step 6: Final answer
    x = 197,385.91

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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.