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Finding the Fourth Proportional to 102.13, 153.22 and 58.81

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Solution

The fourth proportional to 102.13, 153.22 and 58.81 is: 88.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.13 : 153.22 = 58.81 : x
  2. Step 2: Convert to fraction form
    102.13/153.22 = 58.81/x
  3. Step 3: Cross multiply
    102.13x = 153.22 × 58.81
  4. Step 4: Simplify right side
    102.13x = 9,010.57
  5. Step 5: Solve for x
    x = 9,010.57/102.13
  6. Step 6: Final answer
    x = 88.23

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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.