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Finding the Fourth Proportional to 136.16, 204.20 and 59.08

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Solution

The fourth proportional to 136.16, 204.20 and 59.08 is: 88.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.16 : 204.20 = 59.08 : x
  2. Step 2: Convert to fraction form
    136.16/204.20 = 59.08/x
  3. Step 3: Cross multiply
    136.16x = 204.20 × 59.08
  4. Step 4: Simplify right side
    136.16x = 12,064.27
  5. Step 5: Solve for x
    x = 12,064.27/136.16
  6. Step 6: Final answer
    x = 88.61

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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.