Home / 209,104.74-313,674.12-125,436.60

Finding the Fourth Proportional to 209,104.74, 313,674.12 and 125,436.60

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Solution

The fourth proportional to 209,104.74, 313,674.12 and 125,436.60 is: 188,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,104.74 : 313,674.12 = 125,436.60 : x
  2. Step 2: Convert to fraction form
    209,104.74/313,674.12 = 125,436.60/x
  3. Step 3: Cross multiply
    209,104.74x = 313,674.12 × 125,436.60
  4. Step 4: Simplify right side
    209,104.74x = 39,346,215,120.79
  5. Step 5: Solve for x
    x = 39,346,215,120.79/209,104.74
  6. Step 6: Final answer
    x = 188,165.10

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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.