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Finding the Fourth Proportional to 95.01, 143.02 and 86.50

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Solution

The fourth proportional to 95.01, 143.02 and 86.50 is: 130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.01 : 143.02 = 86.50 : x
  2. Step 2: Convert to fraction form
    95.01/143.02 = 86.50/x
  3. Step 3: Cross multiply
    95.01x = 143.02 × 86.50
  4. Step 4: Simplify right side
    95.01x = 12,371.76
  5. Step 5: Solve for x
    x = 12,371.76/95.01
  6. Step 6: Final answer
    x = 130.22

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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.