Home / 209,950.80-314,926.20-115,144.35

Finding the Fourth Proportional to 209,950.80, 314,926.20 and 115,144.35

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Solution

The fourth proportional to 209,950.80, 314,926.20 and 115,144.35 is: 172,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,950.80 : 314,926.20 = 115,144.35 : x
  2. Step 2: Convert to fraction form
    209,950.80/314,926.20 = 115,144.35/x
  3. Step 3: Cross multiply
    209,950.80x = 314,926.20 × 115,144.35
  4. Step 4: Simplify right side
    209,950.80x = 36,261,972,596.97
  5. Step 5: Solve for x
    x = 36,261,972,596.97/209,950.80
  6. Step 6: Final answer
    x = 172,716.53

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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.