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Finding the Fourth Proportional to 124.47, 170.85 and 110.34

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Solution

The fourth proportional to 124.47, 170.85 and 110.34 is: 151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.47 : 170.85 = 110.34 : x
  2. Step 2: Convert to fraction form
    124.47/170.85 = 110.34/x
  3. Step 3: Cross multiply
    124.47x = 170.85 × 110.34
  4. Step 4: Simplify right side
    124.47x = 18,852.00
  5. Step 5: Solve for x
    x = 18,852.00/124.47
  6. Step 6: Final answer
    x = 151.46

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.