Home / 212,822.43-319,233.65-72,582.27

Finding the Fourth Proportional to 212,822.43, 319,233.65 and 72,582.27

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Solution

The fourth proportional to 212,822.43, 319,233.65 and 72,582.27 is: 108,873.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,822.43 : 319,233.65 = 72,582.27 : x
  2. Step 2: Convert to fraction form
    212,822.43/319,233.65 = 72,582.27/x
  3. Step 3: Cross multiply
    212,822.43x = 319,233.65 × 72,582.27
  4. Step 4: Simplify right side
    212,822.43x = 23,170,702,614.47
  5. Step 5: Solve for x
    x = 23,170,702,614.47/212,822.43
  6. Step 6: Final answer
    x = 108,873.41

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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.