Home / 80,549.03-120,678.66-75,805.07

Finding the Fourth Proportional to 80,549.03, 120,678.66 and 75,805.07

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Solution

The fourth proportional to 80,549.03, 120,678.66 and 75,805.07 is: 113,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,549.03 : 120,678.66 = 75,805.07 : x
  2. Step 2: Convert to fraction form
    80,549.03/120,678.66 = 75,805.07/x
  3. Step 3: Cross multiply
    80,549.03x = 120,678.66 × 75,805.07
  4. Step 4: Simplify right side
    80,549.03x = 9,148,053,665.41
  5. Step 5: Solve for x
    x = 9,148,053,665.41/80,549.03
  6. Step 6: Final answer
    x = 113,571.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.