Home / 203,178.20-280,387.98-122,590.17

Finding the Fourth Proportional to 203,178.20, 280,387.98 and 122,590.17

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Solution

The fourth proportional to 203,178.20, 280,387.98 and 122,590.17 is: 169,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,178.20 : 280,387.98 = 122,590.17 : x
  2. Step 2: Convert to fraction form
    203,178.20/280,387.98 = 122,590.17/x
  3. Step 3: Cross multiply
    203,178.20x = 280,387.98 × 122,590.17
  4. Step 4: Simplify right side
    203,178.20x = 34,372,810,134.16
  5. Step 5: Solve for x
    x = 34,372,810,134.16/203,178.20
  6. Step 6: Final answer
    x = 169,175.68

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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.