Home / 212,822.68-319,234.02-72,582.52

Finding the Fourth Proportional to 212,822.68, 319,234.02 and 72,582.52

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Solution

The fourth proportional to 212,822.68, 319,234.02 and 72,582.52 is: 108,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,822.68 : 319,234.02 = 72,582.52 : x
  2. Step 2: Convert to fraction form
    212,822.68/319,234.02 = 72,582.52/x
  3. Step 3: Cross multiply
    212,822.68x = 319,234.02 × 72,582.52
  4. Step 4: Simplify right side
    212,822.68x = 23,170,809,641.33
  5. Step 5: Solve for x
    x = 23,170,809,641.33/212,822.68
  6. Step 6: Final answer
    x = 108,873.78

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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.