Home / 203,424.85-280,732.94-112,789.25

Finding the Fourth Proportional to 203,424.85, 280,732.94 and 112,789.25

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Solution

The fourth proportional to 203,424.85, 280,732.94 and 112,789.25 is: 155,652.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,424.85 : 280,732.94 = 112,789.25 : x
  2. Step 2: Convert to fraction form
    203,424.85/280,732.94 = 112,789.25/x
  3. Step 3: Cross multiply
    203,424.85x = 280,732.94 × 112,789.25
  4. Step 4: Simplify right side
    203,424.85x = 31,663,657,752.90
  5. Step 5: Solve for x
    x = 31,663,657,752.90/203,424.85
  6. Step 6: Final answer
    x = 155,652.85

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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.