Home / 212,734.78-319,147.54-106,176.04

Finding the Fourth Proportional to 212,734.78, 319,147.54 and 106,176.04

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Solution

The fourth proportional to 212,734.78, 319,147.54 and 106,176.04 is: 159,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,734.78 : 319,147.54 = 106,176.04 : x
  2. Step 2: Convert to fraction form
    212,734.78/319,147.54 = 106,176.04/x
  3. Step 3: Cross multiply
    212,734.78x = 319,147.54 × 106,176.04
  4. Step 4: Simplify right side
    212,734.78x = 33,885,820,909.63
  5. Step 5: Solve for x
    x = 33,885,820,909.63/212,734.78
  6. Step 6: Final answer
    x = 159,286.70

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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.