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Finding the Fourth Proportional to 130.04, 195.14 and 61.55

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Solution

The fourth proportional to 130.04, 195.14 and 61.55 is: 92.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.04 : 195.14 = 61.55 : x
  2. Step 2: Convert to fraction form
    130.04/195.14 = 61.55/x
  3. Step 3: Cross multiply
    130.04x = 195.14 × 61.55
  4. Step 4: Simplify right side
    130.04x = 12,009.58
  5. Step 5: Solve for x
    x = 12,009.58/130.04
  6. Step 6: Final answer
    x = 92.36

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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.