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Finding the Fourth Proportional to 162.02, 223.55 and 93.02

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Solution

The fourth proportional to 162.02, 223.55 and 93.02 is: 128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.02 : 223.55 = 93.02 : x
  2. Step 2: Convert to fraction form
    162.02/223.55 = 93.02/x
  3. Step 3: Cross multiply
    162.02x = 223.55 × 93.02
  4. Step 4: Simplify right side
    162.02x = 20,794.62
  5. Step 5: Solve for x
    x = 20,794.62/162.02
  6. Step 6: Final answer
    x = 128.35

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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.