Home / 136,732.05-188,707.42-79,359.04

Finding the Fourth Proportional to 136,732.05, 188,707.42 and 79,359.04

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Solution

The fourth proportional to 136,732.05, 188,707.42 and 79,359.04 is: 109,525.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,732.05 : 188,707.42 = 79,359.04 : x
  2. Step 2: Convert to fraction form
    136,732.05/188,707.42 = 79,359.04/x
  3. Step 3: Cross multiply
    136,732.05x = 188,707.42 × 79,359.04
  4. Step 4: Simplify right side
    136,732.05x = 14,975,640,027.16
  5. Step 5: Solve for x
    x = 14,975,640,027.16/136,732.05
  6. Step 6: Final answer
    x = 109,525.46

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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.