Home / 198,019.90-297,029.85-91,403.65

Finding the Fourth Proportional to 198,019.90, 297,029.85 and 91,403.65

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Solution

The fourth proportional to 198,019.90, 297,029.85 and 91,403.65 is: 137,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,019.90 : 297,029.85 = 91,403.65 : x
  2. Step 2: Convert to fraction form
    198,019.90/297,029.85 = 91,403.65/x
  3. Step 3: Cross multiply
    198,019.90x = 297,029.85 × 91,403.65
  4. Step 4: Simplify right side
    198,019.90x = 27,149,612,448.95
  5. Step 5: Solve for x
    x = 27,149,612,448.95/198,019.90
  6. Step 6: Final answer
    x = 137,105.48

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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.