Home / 130,719.20-195,982.80-41,921.76

Finding the Fourth Proportional to 130,719.20, 195,982.80 and 41,921.76

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Solution

The fourth proportional to 130,719.20, 195,982.80 and 41,921.76 is: 62,851.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,719.20 : 195,982.80 = 41,921.76 : x
  2. Step 2: Convert to fraction form
    130,719.20/195,982.80 = 41,921.76/x
  3. Step 3: Cross multiply
    130,719.20x = 195,982.80 × 41,921.76
  4. Step 4: Simplify right side
    130,719.20x = 8,215,943,905.73
  5. Step 5: Solve for x
    x = 8,215,943,905.73/130,719.20
  6. Step 6: Final answer
    x = 62,851.85

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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.