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Finding the Fourth Proportional to 130,246.40, 195,758.40 and 113,139.20

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Solution

The fourth proportional to 130,246.40, 195,758.40 and 113,139.20 is: 170,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,246.40 : 195,758.40 = 113,139.20 : x
  2. Step 2: Convert to fraction form
    130,246.40/195,758.40 = 113,139.20/x
  3. Step 3: Cross multiply
    130,246.40x = 195,758.40 × 113,139.20
  4. Step 4: Simplify right side
    130,246.40x = 22,147,948,769.28
  5. Step 5: Solve for x
    x = 22,147,948,769.28/130,246.40
  6. Step 6: Final answer
    x = 170,046.53

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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.