Home / 445,272.24-667,915.66-129,746.48

Finding the Fourth Proportional to 445,272.24, 667,915.66 and 129,746.48

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Solution

The fourth proportional to 445,272.24, 667,915.66 and 129,746.48 is: 194,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,272.24 : 667,915.66 = 129,746.48 : x
  2. Step 2: Convert to fraction form
    445,272.24/667,915.66 = 129,746.48/x
  3. Step 3: Cross multiply
    445,272.24x = 667,915.66 × 129,746.48
  4. Step 4: Simplify right side
    445,272.24x = 86,659,705,821.88
  5. Step 5: Solve for x
    x = 86,659,705,821.88/445,272.24
  6. Step 6: Final answer
    x = 194,621.85

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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.