Home / 80,066.48-120,099.65-75,195

Finding the Fourth Proportional to 80,066.48, 120,099.65 and 75,195

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Solution

The fourth proportional to 80,066.48, 120,099.65 and 75,195 is: 112,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,066.48 : 120,099.65 = 75,195 : x
  2. Step 2: Convert to fraction form
    80,066.48/120,099.65 = 75,195/x
  3. Step 3: Cross multiply
    80,066.48x = 120,099.65 × 75,195
  4. Step 4: Simplify right side
    80,066.48x = 9,030,892,805.78
  5. Step 5: Solve for x
    x = 9,030,892,805.78/80,066.48
  6. Step 6: Final answer
    x = 112,792.44

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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.