Home / 198,542.55-297,813.89-72,159.33

Finding the Fourth Proportional to 198,542.55, 297,813.89 and 72,159.33

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Solution

The fourth proportional to 198,542.55, 297,813.89 and 72,159.33 is: 108,239.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,542.55 : 297,813.89 = 72,159.33 : x
  2. Step 2: Convert to fraction form
    198,542.55/297,813.89 = 72,159.33/x
  3. Step 3: Cross multiply
    198,542.55x = 297,813.89 × 72,159.33
  4. Step 4: Simplify right side
    198,542.55x = 21,490,050,767.09
  5. Step 5: Solve for x
    x = 21,490,050,767.09/198,542.55
  6. Step 6: Final answer
    x = 108,239.02

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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.