Home / 209,770.48-314,405.82-120,839.76

Finding the Fourth Proportional to 209,770.48, 314,405.82 and 120,839.76

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Solution

The fourth proportional to 209,770.48, 314,405.82 and 120,839.76 is: 181,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,770.48 : 314,405.82 = 120,839.76 : x
  2. Step 2: Convert to fraction form
    209,770.48/314,405.82 = 120,839.76/x
  3. Step 3: Cross multiply
    209,770.48x = 314,405.82 × 120,839.76
  4. Step 4: Simplify right side
    209,770.48x = 37,992,723,831.40
  5. Step 5: Solve for x
    x = 37,992,723,831.40/209,770.48
  6. Step 6: Final answer
    x = 181,115.68

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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.