Home / 130,359.20-195,500.40-51,447.20

Finding the Fourth Proportional to 130,359.20, 195,500.40 and 51,447.20

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Solution

The fourth proportional to 130,359.20, 195,500.40 and 51,447.20 is: 77,155.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,359.20 : 195,500.40 = 51,447.20 : x
  2. Step 2: Convert to fraction form
    130,359.20/195,500.40 = 51,447.20/x
  3. Step 3: Cross multiply
    130,359.20x = 195,500.40 × 51,447.20
  4. Step 4: Simplify right side
    130,359.20x = 10,057,948,178.88
  5. Step 5: Solve for x
    x = 10,057,948,178.88/130,359.20
  6. Step 6: Final answer
    x = 77,155.65

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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.