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Finding the Fourth Proportional to 92.03, 137.12 and 88.54

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Solution

The fourth proportional to 92.03, 137.12 and 88.54 is: 131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.03 : 137.12 = 88.54 : x
  2. Step 2: Convert to fraction form
    92.03/137.12 = 88.54/x
  3. Step 3: Cross multiply
    92.03x = 137.12 × 88.54
  4. Step 4: Simplify right side
    92.03x = 12,140.48
  5. Step 5: Solve for x
    x = 12,140.48/92.03
  6. Step 6: Final answer
    x = 131.93

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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.