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Finding the Fourth Proportional to 130.56, 194.82 and 116.93

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Solution

The fourth proportional to 130.56, 194.82 and 116.93 is: 174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.56 : 194.82 = 116.93 : x
  2. Step 2: Convert to fraction form
    130.56/194.82 = 116.93/x
  3. Step 3: Cross multiply
    130.56x = 194.82 × 116.93
  4. Step 4: Simplify right side
    130.56x = 22,779.33
  5. Step 5: Solve for x
    x = 22,779.33/130.56
  6. Step 6: Final answer
    x = 174.47

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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.