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Finding the Fourth Proportional to 130.04, 196.14 and 115.02

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Solution

The fourth proportional to 130.04, 196.14 and 115.02 is: 173.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.04 : 196.14 = 115.02 : x
  2. Step 2: Convert to fraction form
    130.04/196.14 = 115.02/x
  3. Step 3: Cross multiply
    130.04x = 196.14 × 115.02
  4. Step 4: Simplify right side
    130.04x = 22,560.02
  5. Step 5: Solve for x
    x = 22,560.02/130.04
  6. Step 6: Final answer
    x = 173.49

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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.