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Finding the Fourth Proportional to 124.18, 185.03 and 117.58

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Solution

The fourth proportional to 124.18, 185.03 and 117.58 is: 175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.18 : 185.03 = 117.58 : x
  2. Step 2: Convert to fraction form
    124.18/185.03 = 117.58/x
  3. Step 3: Cross multiply
    124.18x = 185.03 × 117.58
  4. Step 4: Simplify right side
    124.18x = 21,755.83
  5. Step 5: Solve for x
    x = 21,755.83/124.18
  6. Step 6: Final answer
    x = 175.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.