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Finding the Fourth Proportional to 95.77, 142.79 and 88.03

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Solution

The fourth proportional to 95.77, 142.79 and 88.03 is: 131.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.77 : 142.79 = 88.03 : x
  2. Step 2: Convert to fraction form
    95.77/142.79 = 88.03/x
  3. Step 3: Cross multiply
    95.77x = 142.79 × 88.03
  4. Step 4: Simplify right side
    95.77x = 12,569.80
  5. Step 5: Solve for x
    x = 12,569.80/95.77
  6. Step 6: Final answer
    x = 131.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.