Home / 197,891.20-296,865.60-64,739.20

Finding the Fourth Proportional to 197,891.20, 296,865.60 and 64,739.20

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Solution

The fourth proportional to 197,891.20, 296,865.60 and 64,739.20 is: 97,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,891.20 : 296,865.60 = 64,739.20 : x
  2. Step 2: Convert to fraction form
    197,891.20/296,865.60 = 64,739.20/x
  3. Step 3: Cross multiply
    197,891.20x = 296,865.60 × 64,739.20
  4. Step 4: Simplify right side
    197,891.20x = 19,218,841,451.52
  5. Step 5: Solve for x
    x = 19,218,841,451.52/197,891.20
  6. Step 6: Final answer
    x = 97,118.22

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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.