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Finding the Fourth Proportional to 95.04, 143.12 and 71.16

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Solution

The fourth proportional to 95.04, 143.12 and 71.16 is: 107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.04 : 143.12 = 71.16 : x
  2. Step 2: Convert to fraction form
    95.04/143.12 = 71.16/x
  3. Step 3: Cross multiply
    95.04x = 143.12 × 71.16
  4. Step 4: Simplify right side
    95.04x = 10,184.42
  5. Step 5: Solve for x
    x = 10,184.42/95.04
  6. Step 6: Final answer
    x = 107.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.