Home / 130,170.32-195,256.52-85,229.56

Finding the Fourth Proportional to 130,170.32, 195,256.52 and 85,229.56

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Solution

The fourth proportional to 130,170.32, 195,256.52 and 85,229.56 is: 127,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,170.32 : 195,256.52 = 85,229.56 : x
  2. Step 2: Convert to fraction form
    130,170.32/195,256.52 = 85,229.56/x
  3. Step 3: Cross multiply
    130,170.32x = 195,256.52 × 85,229.56
  4. Step 4: Simplify right side
    130,170.32x = 16,641,627,286.73
  5. Step 5: Solve for x
    x = 16,641,627,286.73/130,170.32
  6. Step 6: Final answer
    x = 127,845.02

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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.