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Finding the Fourth Proportional to 129,497.67, 194,246.22 and 40,758.93

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Solution

The fourth proportional to 129,497.67, 194,246.22 and 40,758.93 is: 61,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,497.67 : 194,246.22 = 40,758.93 : x
  2. Step 2: Convert to fraction form
    129,497.67/194,246.22 = 40,758.93/x
  3. Step 3: Cross multiply
    129,497.67x = 194,246.22 × 40,758.93
  4. Step 4: Simplify right side
    129,497.67x = 7,917,268,083.74
  5. Step 5: Solve for x
    x = 7,917,268,083.74/129,497.67
  6. Step 6: Final answer
    x = 61,138.31

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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.