Home / 136,770.38-188,774.61-80,199.98

Finding the Fourth Proportional to 136,770.38, 188,774.61 and 80,199.98

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Solution

The fourth proportional to 136,770.38, 188,774.61 and 80,199.98 is: 110,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,770.38 : 188,774.61 = 80,199.98 : x
  2. Step 2: Convert to fraction form
    136,770.38/188,774.61 = 80,199.98/x
  3. Step 3: Cross multiply
    136,770.38x = 188,774.61 × 80,199.98
  4. Step 4: Simplify right side
    136,770.38x = 15,139,719,946.51
  5. Step 5: Solve for x
    x = 15,139,719,946.51/136,770.38
  6. Step 6: Final answer
    x = 110,694.44

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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.