Home / 185,787.40-256,382.40-100,902.64

Finding the Fourth Proportional to 185,787.40, 256,382.40 and 100,902.64

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Solution

The fourth proportional to 185,787.40, 256,382.40 and 100,902.64 is: 139,243.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,787.40 : 256,382.40 = 100,902.64 : x
  2. Step 2: Convert to fraction form
    185,787.40/256,382.40 = 100,902.64/x
  3. Step 3: Cross multiply
    185,787.40x = 256,382.40 × 100,902.64
  4. Step 4: Simplify right side
    185,787.40x = 25,869,661,009.54
  5. Step 5: Solve for x
    x = 25,869,661,009.54/185,787.40
  6. Step 6: Final answer
    x = 139,243.36

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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.