Home / 135,862.29-187,512.30-79,273.53

Finding the Fourth Proportional to 135,862.29, 187,512.30 and 79,273.53

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Solution

The fourth proportional to 135,862.29, 187,512.30 and 79,273.53 is: 109,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,862.29 : 187,512.30 = 79,273.53 : x
  2. Step 2: Convert to fraction form
    135,862.29/187,512.30 = 79,273.53/x
  3. Step 3: Cross multiply
    135,862.29x = 187,512.30 × 79,273.53
  4. Step 4: Simplify right side
    135,862.29x = 14,864,761,939.42
  5. Step 5: Solve for x
    x = 14,864,761,939.42/135,862.29
  6. Step 6: Final answer
    x = 109,410.51

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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.