Home / 98,108.21-147,183.68-38,942.57

Finding the Fourth Proportional to 98,108.21, 147,183.68 and 38,942.57

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Solution

The fourth proportional to 98,108.21, 147,183.68 and 38,942.57 is: 58,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,108.21 : 147,183.68 = 38,942.57 : x
  2. Step 2: Convert to fraction form
    98,108.21/147,183.68 = 38,942.57/x
  3. Step 3: Cross multiply
    98,108.21x = 147,183.68 × 38,942.57
  4. Step 4: Simplify right side
    98,108.21x = 5,731,711,226.57
  5. Step 5: Solve for x
    x = 5,731,711,226.57/98,108.21
  6. Step 6: Final answer
    x = 58,422.34

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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.