Home / 136,665.70-188,522.85-80,066.14

Finding the Fourth Proportional to 136,665.70, 188,522.85 and 80,066.14

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Solution

The fourth proportional to 136,665.70, 188,522.85 and 80,066.14 is: 110,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,665.70 : 188,522.85 = 80,066.14 : x
  2. Step 2: Convert to fraction form
    136,665.70/188,522.85 = 80,066.14/x
  3. Step 3: Cross multiply
    136,665.70x = 188,522.85 × 80,066.14
  4. Step 4: Simplify right side
    136,665.70x = 15,094,296,901.30
  5. Step 5: Solve for x
    x = 15,094,296,901.30/136,665.70
  6. Step 6: Final answer
    x = 110,446.86

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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.