Home / 154,634.13-231,915.02-87,195.29

Finding the Fourth Proportional to 154,634.13, 231,915.02 and 87,195.29

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Solution

The fourth proportional to 154,634.13, 231,915.02 and 87,195.29 is: 130,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,634.13 : 231,915.02 = 87,195.29 : x
  2. Step 2: Convert to fraction form
    154,634.13/231,915.02 = 87,195.29/x
  3. Step 3: Cross multiply
    154,634.13x = 231,915.02 × 87,195.29
  4. Step 4: Simplify right side
    154,634.13x = 20,221,895,828.70
  5. Step 5: Solve for x
    x = 20,221,895,828.70/154,634.13
  6. Step 6: Final answer
    x = 130,772.53

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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.