Home / 198,314.05-297,589.27-71,964.15

Finding the Fourth Proportional to 198,314.05, 297,589.27 and 71,964.15

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Solution

The fourth proportional to 198,314.05, 297,589.27 and 71,964.15 is: 107,989.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,314.05 : 297,589.27 = 71,964.15 : x
  2. Step 2: Convert to fraction form
    198,314.05/297,589.27 = 71,964.15/x
  3. Step 3: Cross multiply
    198,314.05x = 297,589.27 × 71,964.15
  4. Step 4: Simplify right side
    198,314.05x = 21,415,758,684.76
  5. Step 5: Solve for x
    x = 21,415,758,684.76/198,314.05
  6. Step 6: Final answer
    x = 107,989.12

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1.5x scale

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.