Home / 209,086.08-313,627.20-84,425.28

Finding the Fourth Proportional to 209,086.08, 313,627.20 and 84,425.28

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Solution

The fourth proportional to 209,086.08, 313,627.20 and 84,425.28 is: 126,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,086.08 : 313,627.20 = 84,425.28 : x
  2. Step 2: Convert to fraction form
    209,086.08/313,627.20 = 84,425.28/x
  3. Step 3: Cross multiply
    209,086.08x = 313,627.20 × 84,425.28
  4. Step 4: Simplify right side
    209,086.08x = 26,478,064,175.62
  5. Step 5: Solve for x
    x = 26,478,064,175.62/209,086.08
  6. Step 6: Final answer
    x = 126,637.14

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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.