Home / 106,397.72-146,839.19-79,493.52

Finding the Fourth Proportional to 106,397.72, 146,839.19 and 79,493.52

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Solution

The fourth proportional to 106,397.72, 146,839.19 and 79,493.52 is: 109,708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,397.72 : 146,839.19 = 79,493.52 : x
  2. Step 2: Convert to fraction form
    106,397.72/146,839.19 = 79,493.52/x
  3. Step 3: Cross multiply
    106,397.72x = 146,839.19 × 79,493.52
  4. Step 4: Simplify right side
    106,397.72x = 11,672,763,689.58
  5. Step 5: Solve for x
    x = 11,672,763,689.58/106,397.72
  6. Step 6: Final answer
    x = 109,708.78

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1.5x scale

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.