Home / 142,691.02-196,915.26-79,029.88

Finding the Fourth Proportional to 142,691.02, 196,915.26 and 79,029.88

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Solution

The fourth proportional to 142,691.02, 196,915.26 and 79,029.88 is: 109,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,691.02 : 196,915.26 = 79,029.88 : x
  2. Step 2: Convert to fraction form
    142,691.02/196,915.26 = 79,029.88/x
  3. Step 3: Cross multiply
    142,691.02x = 196,915.26 × 79,029.88
  4. Step 4: Simplify right side
    142,691.02x = 15,562,189,367.97
  5. Step 5: Solve for x
    x = 15,562,189,367.97/142,691.02
  6. Step 6: Final answer
    x = 109,062.15

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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.