Home / 185,787.66-256,382.74-100,902.90

Finding the Fourth Proportional to 185,787.66, 256,382.74 and 100,902.90

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Solution

The fourth proportional to 185,787.66, 256,382.74 and 100,902.90 is: 139,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,787.66 : 256,382.74 = 100,902.90 : x
  2. Step 2: Convert to fraction form
    185,787.66/256,382.74 = 100,902.90/x
  3. Step 3: Cross multiply
    185,787.66x = 256,382.74 × 100,902.90
  4. Step 4: Simplify right side
    185,787.66x = 25,869,761,975.95
  5. Step 5: Solve for x
    x = 25,869,761,975.95/185,787.66
  6. Step 6: Final answer
    x = 139,243.70

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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.