Home / 212,753.82-319,178.04-92,830.20

Finding the Fourth Proportional to 212,753.82, 319,178.04 and 92,830.20

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Solution

The fourth proportional to 212,753.82, 319,178.04 and 92,830.20 is: 139,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,753.82 : 319,178.04 = 92,830.20 : x
  2. Step 2: Convert to fraction form
    212,753.82/319,178.04 = 92,830.20/x
  3. Step 3: Cross multiply
    212,753.82x = 319,178.04 × 92,830.20
  4. Step 4: Simplify right side
    212,753.82x = 29,629,362,137.61
  5. Step 5: Solve for x
    x = 29,629,362,137.61/212,753.82
  6. Step 6: Final answer
    x = 139,265.95

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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.