Home / 316,507.45-474,761.18-106,144.78

Finding the Fourth Proportional to 316,507.45, 474,761.18 and 106,144.78

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Solution

The fourth proportional to 316,507.45, 474,761.18 and 106,144.78 is: 159,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,507.45 : 474,761.18 = 106,144.78 : x
  2. Step 2: Convert to fraction form
    316,507.45/474,761.18 = 106,144.78/x
  3. Step 3: Cross multiply
    316,507.45x = 474,761.18 × 106,144.78
  4. Step 4: Simplify right side
    316,507.45x = 50,393,422,057.86
  5. Step 5: Solve for x
    x = 50,393,422,057.86/316,507.45
  6. Step 6: Final answer
    x = 159,217.17

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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.