Home / 140,578.10-194,002.62-76,915.88

Finding the Fourth Proportional to 140,578.10, 194,002.62 and 76,915.88

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Solution

The fourth proportional to 140,578.10, 194,002.62 and 76,915.88 is: 106,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,578.10 : 194,002.62 = 76,915.88 : x
  2. Step 2: Convert to fraction form
    140,578.10/194,002.62 = 76,915.88/x
  3. Step 3: Cross multiply
    140,578.10x = 194,002.62 × 76,915.88
  4. Step 4: Simplify right side
    140,578.10x = 14,921,882,239.61
  5. Step 5: Solve for x
    x = 14,921,882,239.61/140,578.10
  6. Step 6: Final answer
    x = 106,146.56

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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.