Home / 203,131.04-280,345.92-122,604.80

Finding the Fourth Proportional to 203,131.04, 280,345.92 and 122,604.80

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Solution

The fourth proportional to 203,131.04, 280,345.92 and 122,604.80 is: 169,209.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,131.04 : 280,345.92 = 122,604.80 : x
  2. Step 2: Convert to fraction form
    203,131.04/280,345.92 = 122,604.80/x
  3. Step 3: Cross multiply
    203,131.04x = 280,345.92 × 122,604.80
  4. Step 4: Simplify right side
    203,131.04x = 34,371,755,452.42
  5. Step 5: Solve for x
    x = 34,371,755,452.42/203,131.04
  6. Step 6: Final answer
    x = 169,209.76

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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.