Home / 212,948.50-319,476.75-79,829.14

Finding the Fourth Proportional to 212,948.50, 319,476.75 and 79,829.14

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Solution

The fourth proportional to 212,948.50, 319,476.75 and 79,829.14 is: 119,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,948.50 : 319,476.75 = 79,829.14 : x
  2. Step 2: Convert to fraction form
    212,948.50/319,476.75 = 79,829.14/x
  3. Step 3: Cross multiply
    212,948.50x = 319,476.75 × 79,829.14
  4. Step 4: Simplify right side
    212,948.50x = 25,503,554,202.50
  5. Step 5: Solve for x
    x = 25,503,554,202.50/212,948.50
  6. Step 6: Final answer
    x = 119,763.95

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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.