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Finding the Fourth Proportional to 146,361.88, 201,979.60 and 79,293.88

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Solution

The fourth proportional to 146,361.88, 201,979.60 and 79,293.88 is: 109,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,361.88 : 201,979.60 = 79,293.88 : x
  2. Step 2: Convert to fraction form
    146,361.88/201,979.60 = 79,293.88/x
  3. Step 3: Cross multiply
    146,361.88x = 201,979.60 × 79,293.88
  4. Step 4: Simplify right side
    146,361.88x = 16,015,746,164.85
  5. Step 5: Solve for x
    x = 16,015,746,164.85/146,361.88
  6. Step 6: Final answer
    x = 109,425.67

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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.