Home / 136,775.26-188,781.35-80,204.86

Finding the Fourth Proportional to 136,775.26, 188,781.35 and 80,204.86

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Solution

The fourth proportional to 136,775.26, 188,781.35 and 80,204.86 is: 110,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,775.26 : 188,781.35 = 80,204.86 : x
  2. Step 2: Convert to fraction form
    136,775.26/188,781.35 = 80,204.86/x
  3. Step 3: Cross multiply
    136,775.26x = 188,781.35 × 80,204.86
  4. Step 4: Simplify right side
    136,775.26x = 15,141,181,747.36
  5. Step 5: Solve for x
    x = 15,141,181,747.36/136,775.26
  6. Step 6: Final answer
    x = 110,701.17

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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.