Home / 197,387.20-296,080.80-86,579.20

Finding the Fourth Proportional to 197,387.20, 296,080.80 and 86,579.20

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Solution

The fourth proportional to 197,387.20, 296,080.80 and 86,579.20 is: 129,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,387.20 : 296,080.80 = 86,579.20 : x
  2. Step 2: Convert to fraction form
    197,387.20/296,080.80 = 86,579.20/x
  3. Step 3: Cross multiply
    197,387.20x = 296,080.80 × 86,579.20
  4. Step 4: Simplify right side
    197,387.20x = 25,634,438,799.36
  5. Step 5: Solve for x
    x = 25,634,438,799.36/197,387.20
  6. Step 6: Final answer
    x = 129,868.80

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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.