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Finding the Fourth Proportional to 141.95, 195.01 and 139.93

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Solution

The fourth proportional to 141.95, 195.01 and 139.93 is: 192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.95 : 195.01 = 139.93 : x
  2. Step 2: Convert to fraction form
    141.95/195.01 = 139.93/x
  3. Step 3: Cross multiply
    141.95x = 195.01 × 139.93
  4. Step 4: Simplify right side
    141.95x = 27,286.91
  5. Step 5: Solve for x
    x = 27,286.91/141.95
  6. Step 6: Final answer
    x = 192.23

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.