Home / 144,441.10-199,328.57-80,778.90

Finding the Fourth Proportional to 144,441.10, 199,328.57 and 80,778.90

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Solution

The fourth proportional to 144,441.10, 199,328.57 and 80,778.90 is: 111,474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,441.10 : 199,328.57 = 80,778.90 : x
  2. Step 2: Convert to fraction form
    144,441.10/199,328.57 = 80,778.90/x
  3. Step 3: Cross multiply
    144,441.10x = 199,328.57 × 80,778.90
  4. Step 4: Simplify right side
    144,441.10x = 16,101,541,894.71
  5. Step 5: Solve for x
    x = 16,101,541,894.71/144,441.10
  6. Step 6: Final answer
    x = 111,474.79

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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.