Home / 129,787.21-194,712.14-48,734.89

Finding the Fourth Proportional to 129,787.21, 194,712.14 and 48,734.89

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Solution

The fourth proportional to 129,787.21, 194,712.14 and 48,734.89 is: 73,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,787.21 : 194,712.14 = 48,734.89 : x
  2. Step 2: Convert to fraction form
    129,787.21/194,712.14 = 48,734.89/x
  3. Step 3: Cross multiply
    129,787.21x = 194,712.14 × 48,734.89
  4. Step 4: Simplify right side
    129,787.21x = 9,489,274,480.89
  5. Step 5: Solve for x
    x = 9,489,274,480.89/129,787.21
  6. Step 6: Final answer
    x = 73,114.10

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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.