Home / 154,469.88-231,312.66-129,444.12

Finding the Fourth Proportional to 154,469.88, 231,312.66 and 129,444.12

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Solution

The fourth proportional to 154,469.88, 231,312.66 and 129,444.12 is: 193,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,469.88 : 231,312.66 = 129,444.12 : x
  2. Step 2: Convert to fraction form
    154,469.88/231,312.66 = 129,444.12/x
  3. Step 3: Cross multiply
    154,469.88x = 231,312.66 × 129,444.12
  4. Step 4: Simplify right side
    154,469.88x = 29,942,063,718.56
  5. Step 5: Solve for x
    x = 29,942,063,718.56/154,469.88
  6. Step 6: Final answer
    x = 193,837.55

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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.