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Finding the Fourth Proportional to 185,414.88, 255,870.72 and 100,530.48

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Solution

The fourth proportional to 185,414.88, 255,870.72 and 100,530.48 is: 138,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,414.88 : 255,870.72 = 100,530.48 : x
  2. Step 2: Convert to fraction form
    185,414.88/255,870.72 = 100,530.48/x
  3. Step 3: Cross multiply
    185,414.88x = 255,870.72 × 100,530.48
  4. Step 4: Simplify right side
    185,414.88x = 25,722,806,299.55
  5. Step 5: Solve for x
    x = 25,722,806,299.55/185,414.88
  6. Step 6: Final answer
    x = 138,731.08

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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.