Home / 212,748.46-319,013.91-70,542.43

Finding the Fourth Proportional to 212,748.46, 319,013.91 and 70,542.43

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Solution

The fourth proportional to 212,748.46, 319,013.91 and 70,542.43 is: 105,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,748.46 : 319,013.91 = 70,542.43 : x
  2. Step 2: Convert to fraction form
    212,748.46/319,013.91 = 70,542.43/x
  3. Step 3: Cross multiply
    212,748.46x = 319,013.91 × 70,542.43
  4. Step 4: Simplify right side
    212,748.46x = 22,504,015,617.67
  5. Step 5: Solve for x
    x = 22,504,015,617.67/212,748.46
  6. Step 6: Final answer
    x = 105,777.57

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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.