Home / 198,318.81-297,596.40-71,968.92

Finding the Fourth Proportional to 198,318.81, 297,596.40 and 71,968.92

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Solution

The fourth proportional to 198,318.81, 297,596.40 and 71,968.92 is: 107,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,318.81 : 297,596.40 = 71,968.92 : x
  2. Step 2: Convert to fraction form
    198,318.81/297,596.40 = 71,968.92/x
  3. Step 3: Cross multiply
    198,318.81x = 297,596.40 × 71,968.92
  4. Step 4: Simplify right side
    198,318.81x = 21,417,691,503.89
  5. Step 5: Solve for x
    x = 21,417,691,503.89/198,318.81
  6. Step 6: Final answer
    x = 107,996.27

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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.