Home / 130,399.20-195,560.40-51,487.20

Finding the Fourth Proportional to 130,399.20, 195,560.40 and 51,487.20

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Solution

The fourth proportional to 130,399.20, 195,560.40 and 51,487.20 is: 77,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,399.20 : 195,560.40 = 51,487.20 : x
  2. Step 2: Convert to fraction form
    130,399.20/195,560.40 = 51,487.20/x
  3. Step 3: Cross multiply
    130,399.20x = 195,560.40 × 51,487.20
  4. Step 4: Simplify right side
    130,399.20x = 10,068,857,426.88
  5. Step 5: Solve for x
    x = 10,068,857,426.88/130,399.20
  6. Step 6: Final answer
    x = 77,215.64

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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.