Home / 136,681.68-188,616.12-80,091.84

Finding the Fourth Proportional to 136,681.68, 188,616.12 and 80,091.84

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Solution

The fourth proportional to 136,681.68, 188,616.12 and 80,091.84 is: 110,524.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,681.68 : 188,616.12 = 80,091.84 : x
  2. Step 2: Convert to fraction form
    136,681.68/188,616.12 = 80,091.84/x
  3. Step 3: Cross multiply
    136,681.68x = 188,616.12 × 80,091.84
  4. Step 4: Simplify right side
    136,681.68x = 15,106,612,104.46
  5. Step 5: Solve for x
    x = 15,106,612,104.46/136,681.68
  6. Step 6: Final answer
    x = 110,524.04

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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.