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Finding the Fourth Proportional to 80,601.48, 120,886.48 and 76,600.74

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Solution

The fourth proportional to 80,601.48, 120,886.48 and 76,600.74 is: 114,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,601.48 : 120,886.48 = 76,600.74 : x
  2. Step 2: Convert to fraction form
    80,601.48/120,886.48 = 76,600.74/x
  3. Step 3: Cross multiply
    80,601.48x = 120,886.48 × 76,600.74
  4. Step 4: Simplify right side
    80,601.48x = 9,259,993,262.20
  5. Step 5: Solve for x
    x = 9,259,993,262.20/80,601.48
  6. Step 6: Final answer
    x = 114,886.14

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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.