Home / 136,941.24-188,960.12-76,504.38

Finding the Fourth Proportional to 136,941.24, 188,960.12 and 76,504.38

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Solution

The fourth proportional to 136,941.24, 188,960.12 and 76,504.38 is: 105,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,941.24 : 188,960.12 = 76,504.38 : x
  2. Step 2: Convert to fraction form
    136,941.24/188,960.12 = 76,504.38/x
  3. Step 3: Cross multiply
    136,941.24x = 188,960.12 × 76,504.38
  4. Step 4: Simplify right side
    136,941.24x = 14,456,276,825.33
  5. Step 5: Solve for x
    x = 14,456,276,825.33/136,941.24
  6. Step 6: Final answer
    x = 105,565.55

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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.