Home / 136,823.22-188,766.18-80,223.66

Finding the Fourth Proportional to 136,823.22, 188,766.18 and 80,223.66

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Solution

The fourth proportional to 136,823.22, 188,766.18 and 80,223.66 is: 110,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,823.22 : 188,766.18 = 80,223.66 : x
  2. Step 2: Convert to fraction form
    136,823.22/188,766.18 = 80,223.66/x
  3. Step 3: Cross multiply
    136,823.22x = 188,766.18 × 80,223.66
  4. Step 4: Simplify right side
    136,823.22x = 15,143,513,843.82
  5. Step 5: Solve for x
    x = 15,143,513,843.82/136,823.22
  6. Step 6: Final answer
    x = 110,679.41

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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.