Home / 206,834.16-310,266.96-80,420.10

Finding the Fourth Proportional to 206,834.16, 310,266.96 and 80,420.10

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Solution

The fourth proportional to 206,834.16, 310,266.96 and 80,420.10 is: 120,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,834.16 : 310,266.96 = 80,420.10 : x
  2. Step 2: Convert to fraction form
    206,834.16/310,266.96 = 80,420.10/x
  3. Step 3: Cross multiply
    206,834.16x = 310,266.96 × 80,420.10
  4. Step 4: Simplify right side
    206,834.16x = 24,951,699,949.90
  5. Step 5: Solve for x
    x = 24,951,699,949.90/206,834.16
  6. Step 6: Final answer
    x = 120,636.26

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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.