Home / 80,565.03-111,209.69-69,188.85

Finding the Fourth Proportional to 80,565.03, 111,209.69 and 69,188.85

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Solution

The fourth proportional to 80,565.03, 111,209.69 and 69,188.85 is: 95,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,565.03 : 111,209.69 = 69,188.85 : x
  2. Step 2: Convert to fraction form
    80,565.03/111,209.69 = 69,188.85/x
  3. Step 3: Cross multiply
    80,565.03x = 111,209.69 × 69,188.85
  4. Step 4: Simplify right side
    80,565.03x = 7,694,470,732.93
  5. Step 5: Solve for x
    x = 7,694,470,732.93/80,565.03
  6. Step 6: Final answer
    x = 95,506.33

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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.