Home / 100,556.16-150,717.60-80,856.96

Finding the Fourth Proportional to 100,556.16, 150,717.60 and 80,856.96

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Solution

The fourth proportional to 100,556.16, 150,717.60 and 80,856.96 is: 121,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,556.16 : 150,717.60 = 80,856.96 : x
  2. Step 2: Convert to fraction form
    100,556.16/150,717.60 = 80,856.96/x
  3. Step 3: Cross multiply
    100,556.16x = 150,717.60 × 80,856.96
  4. Step 4: Simplify right side
    100,556.16x = 12,186,566,954.50
  5. Step 5: Solve for x
    x = 12,186,566,954.50/100,556.16
  6. Step 6: Final answer
    x = 121,191.65

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