Home / 136,658.27-188,588.70-76,227.36

Finding the Fourth Proportional to 136,658.27, 188,588.70 and 76,227.36

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Solution

The fourth proportional to 136,658.27, 188,588.70 and 76,227.36 is: 105,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,658.27 : 188,588.70 = 76,227.36 : x
  2. Step 2: Convert to fraction form
    136,658.27/188,588.70 = 76,227.36/x
  3. Step 3: Cross multiply
    136,658.27x = 188,588.70 × 76,227.36
  4. Step 4: Simplify right side
    136,658.27x = 14,375,618,726.83
  5. Step 5: Solve for x
    x = 14,375,618,726.83/136,658.27
  6. Step 6: Final answer
    x = 105,193.92

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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.