Home / 144,306.89-199,144.25-80,645.75

Finding the Fourth Proportional to 144,306.89, 199,144.25 and 80,645.75

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Solution

The fourth proportional to 144,306.89, 199,144.25 and 80,645.75 is: 111,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,306.89 : 199,144.25 = 80,645.75 : x
  2. Step 2: Convert to fraction form
    144,306.89/199,144.25 = 80,645.75/x
  3. Step 3: Cross multiply
    144,306.89x = 199,144.25 × 80,645.75
  4. Step 4: Simplify right side
    144,306.89x = 16,060,137,796.49
  5. Step 5: Solve for x
    x = 16,060,137,796.49/144,306.89
  6. Step 6: Final answer
    x = 111,291.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.