Home / 144,429.20-199,317.68-80,766.84

Finding the Fourth Proportional to 144,429.20, 199,317.68 and 80,766.84

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Solution

The fourth proportional to 144,429.20, 199,317.68 and 80,766.84 is: 111,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,429.20 : 199,317.68 = 80,766.84 : x
  2. Step 2: Convert to fraction form
    144,429.20/199,317.68 = 80,766.84/x
  3. Step 3: Cross multiply
    144,429.20x = 199,317.68 × 80,766.84
  4. Step 4: Simplify right side
    144,429.20x = 16,098,259,169.73
  5. Step 5: Solve for x
    x = 16,098,259,169.73/144,429.20
  6. Step 6: Final answer
    x = 111,461.25

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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.