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Finding the Fourth Proportional to 154,954.80, 213,747.57 and 97,571.61

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Solution

The fourth proportional to 154,954.80, 213,747.57 and 97,571.61 is: 134,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,954.80 : 213,747.57 = 97,571.61 : x
  2. Step 2: Convert to fraction form
    154,954.80/213,747.57 = 97,571.61/x
  3. Step 3: Cross multiply
    154,954.80x = 213,747.57 × 97,571.61
  4. Step 4: Simplify right side
    154,954.80x = 20,855,694,538.49
  5. Step 5: Solve for x
    x = 20,855,694,538.49/154,954.80
  6. Step 6: Final answer
    x = 134,592.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.