Home / 185,278.73-255,685.53-100,395.95

Finding the Fourth Proportional to 185,278.73, 255,685.53 and 100,395.95

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Solution

The fourth proportional to 185,278.73, 255,685.53 and 100,395.95 is: 138,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,278.73 : 255,685.53 = 100,395.95 : x
  2. Step 2: Convert to fraction form
    185,278.73/255,685.53 = 100,395.95/x
  3. Step 3: Cross multiply
    185,278.73x = 255,685.53 × 100,395.95
  4. Step 4: Simplify right side
    185,278.73x = 25,669,789,905.20
  5. Step 5: Solve for x
    x = 25,669,789,905.20/185,278.73
  6. Step 6: Final answer
    x = 138,546.88

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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.