Home / 206,470.14-309,676.05-66,210.54

Finding the Fourth Proportional to 206,470.14, 309,676.05 and 66,210.54

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Solution

The fourth proportional to 206,470.14, 309,676.05 and 66,210.54 is: 99,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,470.14 : 309,676.05 = 66,210.54 : x
  2. Step 2: Convert to fraction form
    206,470.14/309,676.05 = 66,210.54/x
  3. Step 3: Cross multiply
    206,470.14x = 309,676.05 × 66,210.54
  4. Step 4: Simplify right side
    206,470.14x = 20,503,818,495.57
  5. Step 5: Solve for x
    x = 20,503,818,495.57/206,470.14
  6. Step 6: Final answer
    x = 99,306.46

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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.