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Finding the Fourth Proportional to 124.04, 185.91 and 55.50

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Solution

The fourth proportional to 124.04, 185.91 and 55.50 is: 83.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.04 : 185.91 = 55.50 : x
  2. Step 2: Convert to fraction form
    124.04/185.91 = 55.50/x
  3. Step 3: Cross multiply
    124.04x = 185.91 × 55.50
  4. Step 4: Simplify right side
    124.04x = 10,318.01
  5. Step 5: Solve for x
    x = 10,318.01/124.04
  6. Step 6: Final answer
    x = 83.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.