Home / 80,910.09-120,483.68-80,025.71

Finding the Fourth Proportional to 80,910.09, 120,483.68 and 80,025.71

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Solution

The fourth proportional to 80,910.09, 120,483.68 and 80,025.71 is: 119,166.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,910.09 : 120,483.68 = 80,025.71 : x
  2. Step 2: Convert to fraction form
    80,910.09/120,483.68 = 80,025.71/x
  3. Step 3: Cross multiply
    80,910.09x = 120,483.68 × 80,025.71
  4. Step 4: Simplify right side
    80,910.09x = 9,641,791,032.87
  5. Step 5: Solve for x
    x = 9,641,791,032.87/80,910.09
  6. Step 6: Final answer
    x = 119,166.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.