Home / 136,622.80-188,553.96-80,081.68

Finding the Fourth Proportional to 136,622.80, 188,553.96 and 80,081.68

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Solution

The fourth proportional to 136,622.80, 188,553.96 and 80,081.68 is: 110,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,622.80 : 188,553.96 = 80,081.68 : x
  2. Step 2: Convert to fraction form
    136,622.80/188,553.96 = 80,081.68/x
  3. Step 3: Cross multiply
    136,622.80x = 188,553.96 × 80,081.68
  4. Step 4: Simplify right side
    136,622.80x = 15,099,717,887.45
  5. Step 5: Solve for x
    x = 15,099,717,887.45/136,622.80
  6. Step 6: Final answer
    x = 110,521.22

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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.