Home / 212,903.20-319,356.11-63,144.73

Finding the Fourth Proportional to 212,903.20, 319,356.11 and 63,144.73

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Solution

The fourth proportional to 212,903.20, 319,356.11 and 63,144.73 is: 94,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,903.20 : 319,356.11 = 63,144.73 : x
  2. Step 2: Convert to fraction form
    212,903.20/319,356.11 = 63,144.73/x
  3. Step 3: Cross multiply
    212,903.20x = 319,356.11 × 63,144.73
  4. Step 4: Simplify right side
    212,903.20x = 20,165,655,339.80
  5. Step 5: Solve for x
    x = 20,165,655,339.80/212,903.20
  6. Step 6: Final answer
    x = 94,717.48

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1.5x scale

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.