Home / 203,569.72-280,925.94-112,939.42

Finding the Fourth Proportional to 203,569.72, 280,925.94 and 112,939.42

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Solution

The fourth proportional to 203,569.72, 280,925.94 and 112,939.42 is: 155,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,569.72 : 280,925.94 = 112,939.42 : x
  2. Step 2: Convert to fraction form
    203,569.72/280,925.94 = 112,939.42/x
  3. Step 3: Cross multiply
    203,569.72x = 280,925.94 × 112,939.42
  4. Step 4: Simplify right side
    203,569.72x = 31,727,612,726.55
  5. Step 5: Solve for x
    x = 31,727,612,726.55/203,569.72
  6. Step 6: Final answer
    x = 155,856.25

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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.