Home / 120,787.98-181,244.25-54,274.38

Finding the Fourth Proportional to 120,787.98, 181,244.25 and 54,274.38

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Solution

The fourth proportional to 120,787.98, 181,244.25 and 54,274.38 is: 81,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,787.98 : 181,244.25 = 54,274.38 : x
  2. Step 2: Convert to fraction form
    120,787.98/181,244.25 = 54,274.38/x
  3. Step 3: Cross multiply
    120,787.98x = 181,244.25 × 54,274.38
  4. Step 4: Simplify right side
    120,787.98x = 9,836,919,297.32
  5. Step 5: Solve for x
    x = 9,836,919,297.32/120,787.98
  6. Step 6: Final answer
    x = 81,439.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.