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Finding the Fourth Proportional to 124.63, 185.73 and 118.15

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Solution

The fourth proportional to 124.63, 185.73 and 118.15 is: 176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.63 : 185.73 = 118.15 : x
  2. Step 2: Convert to fraction form
    124.63/185.73 = 118.15/x
  3. Step 3: Cross multiply
    124.63x = 185.73 × 118.15
  4. Step 4: Simplify right side
    124.63x = 21,943.07
  5. Step 5: Solve for x
    x = 21,943.07/124.63
  6. Step 6: Final answer
    x = 176.07

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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.