Home / 212,696.57-319,051.04-79,551.42

Finding the Fourth Proportional to 212,696.57, 319,051.04 and 79,551.42

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Solution

The fourth proportional to 212,696.57, 319,051.04 and 79,551.42 is: 119,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,696.57 : 319,051.04 = 79,551.42 : x
  2. Step 2: Convert to fraction form
    212,696.57/319,051.04 = 79,551.42/x
  3. Step 3: Cross multiply
    212,696.57x = 319,051.04 × 79,551.42
  4. Step 4: Simplify right side
    212,696.57x = 25,380,962,886.72
  5. Step 5: Solve for x
    x = 25,380,962,886.72/212,696.57
  6. Step 6: Final answer
    x = 119,329.44

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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.