Home / 209,123.67-313,508.16-82,853.13

Finding the Fourth Proportional to 209,123.67, 313,508.16 and 82,853.13

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Solution

The fourth proportional to 209,123.67, 313,508.16 and 82,853.13 is: 124,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,123.67 : 313,508.16 = 82,853.13 : x
  2. Step 2: Convert to fraction form
    209,123.67/313,508.16 = 82,853.13/x
  3. Step 3: Cross multiply
    209,123.67x = 313,508.16 × 82,853.13
  4. Step 4: Simplify right side
    209,123.67x = 25,975,131,632.20
  5. Step 5: Solve for x
    x = 25,975,131,632.20/209,123.67
  6. Step 6: Final answer
    x = 124,209.43

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1.5x scale

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.