Home / 130,309.20-195,425.40-51,397.20

Finding the Fourth Proportional to 130,309.20, 195,425.40 and 51,397.20

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Solution

The fourth proportional to 130,309.20, 195,425.40 and 51,397.20 is: 77,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,309.20 : 195,425.40 = 51,397.20 : x
  2. Step 2: Convert to fraction form
    130,309.20/195,425.40 = 51,397.20/x
  3. Step 3: Cross multiply
    130,309.20x = 195,425.40 × 51,397.20
  4. Step 4: Simplify right side
    130,309.20x = 10,044,318,368.88
  5. Step 5: Solve for x
    x = 10,044,318,368.88/130,309.20
  6. Step 6: Final answer
    x = 77,080.65

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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.