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Finding the Fourth Proportional to 130.59, 197.01 and 124.20

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Solution

The fourth proportional to 130.59, 197.01 and 124.20 is: 187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.59 : 197.01 = 124.20 : x
  2. Step 2: Convert to fraction form
    130.59/197.01 = 124.20/x
  3. Step 3: Cross multiply
    130.59x = 197.01 × 124.20
  4. Step 4: Simplify right side
    130.59x = 24,468.64
  5. Step 5: Solve for x
    x = 24,468.64/130.59
  6. Step 6: Final answer
    x = 187.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.