Home / 136,437.28-188,292-76,007.04

Finding the Fourth Proportional to 136,437.28, 188,292 and 76,007.04

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Solution

The fourth proportional to 136,437.28, 188,292 and 76,007.04 is: 104,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,437.28 : 188,292 = 76,007.04 : x
  2. Step 2: Convert to fraction form
    136,437.28/188,292 = 76,007.04/x
  3. Step 3: Cross multiply
    136,437.28x = 188,292 × 76,007.04
  4. Step 4: Simplify right side
    136,437.28x = 14,311,517,575.68
  5. Step 5: Solve for x
    x = 14,311,517,575.68/136,437.28
  6. Step 6: Final answer
    x = 104,894.48

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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.