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Finding the Fourth Proportional to 146,321.28, 201,923.40 and 79,253.28

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Solution

The fourth proportional to 146,321.28, 201,923.40 and 79,253.28 is: 109,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,321.28 : 201,923.40 = 79,253.28 : x
  2. Step 2: Convert to fraction form
    146,321.28/201,923.40 = 79,253.28/x
  3. Step 3: Cross multiply
    146,321.28x = 201,923.40 × 79,253.28
  4. Step 4: Simplify right side
    146,321.28x = 16,003,091,758.75
  5. Step 5: Solve for x
    x = 16,003,091,758.75/146,321.28
  6. Step 6: Final answer
    x = 109,369.54

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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.