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Finding the Fourth Proportional to 124,375.84, 171,638.36 and 67,787.12

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Solution

The fourth proportional to 124,375.84, 171,638.36 and 67,787.12 is: 93,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,375.84 : 171,638.36 = 67,787.12 : x
  2. Step 2: Convert to fraction form
    124,375.84/171,638.36 = 67,787.12/x
  3. Step 3: Cross multiply
    124,375.84x = 171,638.36 × 67,787.12
  4. Step 4: Simplify right side
    124,375.84x = 11,634,870,105.92
  5. Step 5: Solve for x
    x = 11,634,870,105.92/124,375.84
  6. Step 6: Final answer
    x = 93,546.06

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1.5x scale

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.