Home / 130,453.60-195,680.40-108,311.20

Finding the Fourth Proportional to 130,453.60, 195,680.40 and 108,311.20

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Solution

The fourth proportional to 130,453.60, 195,680.40 and 108,311.20 is: 162,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,453.60 : 195,680.40 = 108,311.20 : x
  2. Step 2: Convert to fraction form
    130,453.60/195,680.40 = 108,311.20/x
  3. Step 3: Cross multiply
    130,453.60x = 195,680.40 × 108,311.20
  4. Step 4: Simplify right side
    130,453.60x = 21,194,378,940.48
  5. Step 5: Solve for x
    x = 21,194,378,940.48/130,453.60
  6. Step 6: Final answer
    x = 162,466.80

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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.