Home / 209,986.26-314,477.60-115,073.70

Finding the Fourth Proportional to 209,986.26, 314,477.60 and 115,073.70

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Solution

The fourth proportional to 209,986.26, 314,477.60 and 115,073.70 is: 172,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,986.26 : 314,477.60 = 115,073.70 : x
  2. Step 2: Convert to fraction form
    209,986.26/314,477.60 = 115,073.70/x
  3. Step 3: Cross multiply
    209,986.26x = 314,477.60 × 115,073.70
  4. Step 4: Simplify right side
    209,986.26x = 36,188,100,423.75
  5. Step 5: Solve for x
    x = 36,188,100,423.75/209,986.26
  6. Step 6: Final answer
    x = 172,335.56

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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.