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Finding the Fourth Proportional to 153.69, 212.04 and 95.37

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Solution

The fourth proportional to 153.69, 212.04 and 95.37 is: 131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.69 : 212.04 = 95.37 : x
  2. Step 2: Convert to fraction form
    153.69/212.04 = 95.37/x
  3. Step 3: Cross multiply
    153.69x = 212.04 × 95.37
  4. Step 4: Simplify right side
    153.69x = 20,222.25
  5. Step 5: Solve for x
    x = 20,222.25/153.69
  6. Step 6: Final answer
    x = 131.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.