Home / 106,519.80-158,721.27-102,502.20

Finding the Fourth Proportional to 106,519.80, 158,721.27 and 102,502.20

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Solution

The fourth proportional to 106,519.80, 158,721.27 and 102,502.20 is: 152,734.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,519.80 : 158,721.27 = 102,502.20 : x
  2. Step 2: Convert to fraction form
    106,519.80/158,721.27 = 102,502.20/x
  3. Step 3: Cross multiply
    106,519.80x = 158,721.27 × 102,502.20
  4. Step 4: Simplify right side
    106,519.80x = 16,269,279,361.79
  5. Step 5: Solve for x
    x = 16,269,279,361.79/106,519.80
  6. Step 6: Final answer
    x = 152,734.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.