Home / 136,770.13-188,774.27-80,199.73

Finding the Fourth Proportional to 136,770.13, 188,774.27 and 80,199.73

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Solution

The fourth proportional to 136,770.13, 188,774.27 and 80,199.73 is: 110,694.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,770.13 : 188,774.27 = 80,199.73 : x
  2. Step 2: Convert to fraction form
    136,770.13/188,774.27 = 80,199.73/x
  3. Step 3: Cross multiply
    136,770.13x = 188,774.27 × 80,199.73
  4. Step 4: Simplify right side
    136,770.13x = 15,139,645,213.51
  5. Step 5: Solve for x
    x = 15,139,645,213.51/136,770.13
  6. Step 6: Final answer
    x = 110,694.09

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1.5x scale

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.