Home / 209,722.42-314,459.20-83,294.65

Finding the Fourth Proportional to 209,722.42, 314,459.20 and 83,294.65

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Solution

The fourth proportional to 209,722.42, 314,459.20 and 83,294.65 is: 124,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,722.42 : 314,459.20 = 83,294.65 : x
  2. Step 2: Convert to fraction form
    209,722.42/314,459.20 = 83,294.65/x
  3. Step 3: Cross multiply
    209,722.42x = 314,459.20 × 83,294.65
  4. Step 4: Simplify right side
    209,722.42x = 26,192,769,003.28
  5. Step 5: Solve for x
    x = 26,192,769,003.28/209,722.42
  6. Step 6: Final answer
    x = 124,892.56

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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.