Home / 316,820.24-475,231.38-80,162.90

Finding the Fourth Proportional to 316,820.24, 475,231.38 and 80,162.90

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Solution

The fourth proportional to 316,820.24, 475,231.38 and 80,162.90 is: 120,244.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,820.24 : 475,231.38 = 80,162.90 : x
  2. Step 2: Convert to fraction form
    316,820.24/475,231.38 = 80,162.90/x
  3. Step 3: Cross multiply
    316,820.24x = 475,231.38 × 80,162.90
  4. Step 4: Simplify right side
    316,820.24x = 38,095,925,591.80
  5. Step 5: Solve for x
    x = 38,095,925,591.80/316,820.24
  6. Step 6: Final answer
    x = 120,244.61

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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.