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Finding the Fourth Proportional to 163.04, 225.02 and 100.04

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Solution

The fourth proportional to 163.04, 225.02 and 100.04 is: 138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.04 : 225.02 = 100.04 : x
  2. Step 2: Convert to fraction form
    163.04/225.02 = 100.04/x
  3. Step 3: Cross multiply
    163.04x = 225.02 × 100.04
  4. Step 4: Simplify right side
    163.04x = 22,511.00
  5. Step 5: Solve for x
    x = 22,511.00/163.04
  6. Step 6: Final answer
    x = 138.07

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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.