Home / 136,877.20-205,047.96-122,016.40

Finding the Fourth Proportional to 136,877.20, 205,047.96 and 122,016.40

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Solution

The fourth proportional to 136,877.20, 205,047.96 and 122,016.40 is: 182,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,877.20 : 205,047.96 = 122,016.40 : x
  2. Step 2: Convert to fraction form
    136,877.20/205,047.96 = 122,016.40/x
  3. Step 3: Cross multiply
    136,877.20x = 205,047.96 × 122,016.40
  4. Step 4: Simplify right side
    136,877.20x = 25,019,213,906.54
  5. Step 5: Solve for x
    x = 25,019,213,906.54/136,877.20
  6. Step 6: Final answer
    x = 182,785.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.