Home / 212,963.50-319,351.69-79,750.33

Finding the Fourth Proportional to 212,963.50, 319,351.69 and 79,750.33

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Solution

The fourth proportional to 212,963.50, 319,351.69 and 79,750.33 is: 119,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,963.50 : 319,351.69 = 79,750.33 : x
  2. Step 2: Convert to fraction form
    212,963.50/319,351.69 = 79,750.33/x
  3. Step 3: Cross multiply
    212,963.50x = 319,351.69 × 79,750.33
  4. Step 4: Simplify right side
    212,963.50x = 25,468,402,663.56
  5. Step 5: Solve for x
    x = 25,468,402,663.56/212,963.50
  6. Step 6: Final answer
    x = 119,590.46

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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.