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Finding the Fourth Proportional to 146,367.42, 201,987 and 79,299.42

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Solution

The fourth proportional to 146,367.42, 201,987 and 79,299.42 is: 109,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,367.42 : 201,987 = 79,299.42 : x
  2. Step 2: Convert to fraction form
    146,367.42/201,987 = 79,299.42/x
  3. Step 3: Cross multiply
    146,367.42x = 201,987 × 79,299.42
  4. Step 4: Simplify right side
    146,367.42x = 16,017,451,947.54
  5. Step 5: Solve for x
    x = 16,017,451,947.54/146,367.42
  6. Step 6: Final answer
    x = 109,433.18

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1.5x scale

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.