Home / 212,735.40-319,103.10-94,418.70

Finding the Fourth Proportional to 212,735.40, 319,103.10 and 94,418.70

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Solution

The fourth proportional to 212,735.40, 319,103.10 and 94,418.70 is: 141,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,735.40 : 319,103.10 = 94,418.70 : x
  2. Step 2: Convert to fraction form
    212,735.40/319,103.10 = 94,418.70/x
  3. Step 3: Cross multiply
    212,735.40x = 319,103.10 × 94,418.70
  4. Step 4: Simplify right side
    212,735.40x = 30,129,299,867.97
  5. Step 5: Solve for x
    x = 30,129,299,867.97/212,735.40
  6. Step 6: Final answer
    x = 141,628.05

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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.