Home / 212,682.43-319,070.95-92,758.78

Finding the Fourth Proportional to 212,682.43, 319,070.95 and 92,758.78

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Solution

The fourth proportional to 212,682.43, 319,070.95 and 92,758.78 is: 139,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,682.43 : 319,070.95 = 92,758.78 : x
  2. Step 2: Convert to fraction form
    212,682.43/319,070.95 = 92,758.78/x
  3. Step 3: Cross multiply
    212,682.43x = 319,070.95 × 92,758.78
  4. Step 4: Simplify right side
    212,682.43x = 29,596,630,691.98
  5. Step 5: Solve for x
    x = 29,596,630,691.98/212,682.43
  6. Step 6: Final answer
    x = 139,158.79

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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.