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Finding the Fourth Proportional to 88.05, 131.85 and 73.02

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Solution

The fourth proportional to 88.05, 131.85 and 73.02 is: 109.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.05 : 131.85 = 73.02 : x
  2. Step 2: Convert to fraction form
    88.05/131.85 = 73.02/x
  3. Step 3: Cross multiply
    88.05x = 131.85 × 73.02
  4. Step 4: Simplify right side
    88.05x = 9,627.69
  5. Step 5: Solve for x
    x = 9,627.69/88.05
  6. Step 6: Final answer
    x = 109.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.