Home / 198,317.89-297,475.61-71,928.73

Finding the Fourth Proportional to 198,317.89, 297,475.61 and 71,928.73

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Solution

The fourth proportional to 198,317.89, 297,475.61 and 71,928.73 is: 107,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,317.89 : 297,475.61 = 71,928.73 : x
  2. Step 2: Convert to fraction form
    198,317.89/297,475.61 = 71,928.73/x
  3. Step 3: Cross multiply
    198,317.89x = 297,475.61 × 71,928.73
  4. Step 4: Simplify right side
    198,317.89x = 21,397,042,473.63
  5. Step 5: Solve for x
    x = 21,397,042,473.63/198,317.89
  6. Step 6: Final answer
    x = 107,892.65

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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.