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Finding the Fourth Proportional to 141, 194.58 and 104.33

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Solution

The fourth proportional to 141, 194.58 and 104.33 is: 143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141 : 194.58 = 104.33 : x
  2. Step 2: Convert to fraction form
    141/194.58 = 104.33/x
  3. Step 3: Cross multiply
    141x = 194.58 × 104.33
  4. Step 4: Simplify right side
    141x = 20,301.02
  5. Step 5: Solve for x
    x = 20,301.02/141
  6. Step 6: Final answer
    x = 143.98

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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.