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Finding the Fourth Proportional to 142,974.94, 214,322.94 and 68,074.96

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Solution

The fourth proportional to 142,974.94, 214,322.94 and 68,074.96 is: 102,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.94 : 214,322.94 = 68,074.96 : x
  2. Step 2: Convert to fraction form
    142,974.94/214,322.94 = 68,074.96/x
  3. Step 3: Cross multiply
    142,974.94x = 214,322.94 × 68,074.96
  4. Step 4: Simplify right side
    142,974.94x = 14,590,025,031.78
  5. Step 5: Solve for x
    x = 14,590,025,031.78/142,974.94
  6. Step 6: Final answer
    x = 102,046.03

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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.