Home / 134,721-185,912.49-74,297.22

Finding the Fourth Proportional to 134,721, 185,912.49 and 74,297.22

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Solution

The fourth proportional to 134,721, 185,912.49 and 74,297.22 is: 102,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,721 : 185,912.49 = 74,297.22 : x
  2. Step 2: Convert to fraction form
    134,721/185,912.49 = 74,297.22/x
  3. Step 3: Cross multiply
    134,721x = 185,912.49 × 74,297.22
  4. Step 4: Simplify right side
    134,721x = 13,812,781,170.28
  5. Step 5: Solve for x
    x = 13,812,781,170.28/134,721
  6. Step 6: Final answer
    x = 102,528.79

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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.