Home / 198,542.05-297,813.14-72,158.83

Finding the Fourth Proportional to 198,542.05, 297,813.14 and 72,158.83

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Solution

The fourth proportional to 198,542.05, 297,813.14 and 72,158.83 is: 108,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,542.05 : 297,813.14 = 72,158.83 : x
  2. Step 2: Convert to fraction form
    198,542.05/297,813.14 = 72,158.83/x
  3. Step 3: Cross multiply
    198,542.05x = 297,813.14 × 72,158.83
  4. Step 4: Simplify right side
    198,542.05x = 21,489,847,741.03
  5. Step 5: Solve for x
    x = 21,489,847,741.03/198,542.05
  6. Step 6: Final answer
    x = 108,238.27

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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.