Home / 136,438.28-188,293.38-76,008.04

Finding the Fourth Proportional to 136,438.28, 188,293.38 and 76,008.04

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Solution

The fourth proportional to 136,438.28, 188,293.38 and 76,008.04 is: 104,895.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438.28 : 188,293.38 = 76,008.04 : x
  2. Step 2: Convert to fraction form
    136,438.28/188,293.38 = 76,008.04/x
  3. Step 3: Cross multiply
    136,438.28x = 188,293.38 × 76,008.04
  4. Step 4: Simplify right side
    136,438.28x = 14,311,810,758.78
  5. Step 5: Solve for x
    x = 14,311,810,758.78/136,438.28
  6. Step 6: Final answer
    x = 104,895.86

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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.