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Finding the Fourth Proportional to 129,513.74, 194,107.44 and 69,393.11

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Solution

The fourth proportional to 129,513.74, 194,107.44 and 69,393.11 is: 104,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,513.74 : 194,107.44 = 69,393.11 : x
  2. Step 2: Convert to fraction form
    129,513.74/194,107.44 = 69,393.11/x
  3. Step 3: Cross multiply
    129,513.74x = 194,107.44 × 69,393.11
  4. Step 4: Simplify right side
    129,513.74x = 13,469,719,421.01
  5. Step 5: Solve for x
    x = 13,469,719,421.01/129,513.74
  6. Step 6: Final answer
    x = 104,002.24

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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.