Home / 136,414.29-188,261.16-82,701.57

Finding the Fourth Proportional to 136,414.29, 188,261.16 and 82,701.57

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Solution

The fourth proportional to 136,414.29, 188,261.16 and 82,701.57 is: 114,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,414.29 : 188,261.16 = 82,701.57 : x
  2. Step 2: Convert to fraction form
    136,414.29/188,261.16 = 82,701.57/x
  3. Step 3: Cross multiply
    136,414.29x = 188,261.16 × 82,701.57
  4. Step 4: Simplify right side
    136,414.29x = 15,569,493,502.02
  5. Step 5: Solve for x
    x = 15,569,493,502.02/136,414.29
  6. Step 6: Final answer
    x = 114,133.89

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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.