Home / 198,350.50-297,525.14-71,990.58

Finding the Fourth Proportional to 198,350.50, 297,525.14 and 71,990.58

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Solution

The fourth proportional to 198,350.50, 297,525.14 and 71,990.58 is: 107,985.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,350.50 : 297,525.14 = 71,990.58 : x
  2. Step 2: Convert to fraction form
    198,350.50/297,525.14 = 71,990.58/x
  3. Step 3: Cross multiply
    198,350.50x = 297,525.14 × 71,990.58
  4. Step 4: Simplify right side
    198,350.50x = 21,419,005,905.56
  5. Step 5: Solve for x
    x = 21,419,005,905.56/198,350.50
  6. Step 6: Final answer
    x = 107,985.64

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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.