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Finding the Fourth Proportional to 88.34, 133.00 and 61.45

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Solution

The fourth proportional to 88.34, 133.00 and 61.45 is: 92.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.34 : 133.00 = 61.45 : x
  2. Step 2: Convert to fraction form
    88.34/133.00 = 61.45/x
  3. Step 3: Cross multiply
    88.34x = 133.00 × 61.45
  4. Step 4: Simplify right side
    88.34x = 8,172.36
  5. Step 5: Solve for x
    x = 8,172.36/88.34
  6. Step 6: Final answer
    x = 92.52

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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.