Home / 136,403.97-188,246.93-82,691.25

Finding the Fourth Proportional to 136,403.97, 188,246.93 and 82,691.25

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Solution

The fourth proportional to 136,403.97, 188,246.93 and 82,691.25 is: 114,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,403.97 : 188,246.93 = 82,691.25 : x
  2. Step 2: Convert to fraction form
    136,403.97/188,246.93 = 82,691.25/x
  3. Step 3: Cross multiply
    136,403.97x = 188,246.93 × 82,691.25
  4. Step 4: Simplify right side
    136,403.97x = 15,566,373,950.36
  5. Step 5: Solve for x
    x = 15,566,373,950.36/136,403.97
  6. Step 6: Final answer
    x = 114,119.65

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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.