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Finding the Fourth Proportional to 131.02, 195.21 and 124.03

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Solution

The fourth proportional to 131.02, 195.21 and 124.03 is: 184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.02 : 195.21 = 124.03 : x
  2. Step 2: Convert to fraction form
    131.02/195.21 = 124.03/x
  3. Step 3: Cross multiply
    131.02x = 195.21 × 124.03
  4. Step 4: Simplify right side
    131.02x = 24,212.14
  5. Step 5: Solve for x
    x = 24,212.14/131.02
  6. Step 6: Final answer
    x = 184.80

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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.