Home / 212,895.52-319,343.26-119,408.56

Finding the Fourth Proportional to 212,895.52, 319,343.26 and 119,408.56

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Solution

The fourth proportional to 212,895.52, 319,343.26 and 119,408.56 is: 179,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,895.52 : 319,343.26 = 119,408.56 : x
  2. Step 2: Convert to fraction form
    212,895.52/319,343.26 = 119,408.56/x
  3. Step 3: Cross multiply
    212,895.52x = 319,343.26 × 119,408.56
  4. Step 4: Simplify right side
    212,895.52x = 38,132,318,822.31
  5. Step 5: Solve for x
    x = 38,132,318,822.31/212,895.52
  6. Step 6: Final answer
    x = 179,112.83

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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.