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Finding the Fourth Proportional to 130.98, 195.63 and 94.80

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Solution

The fourth proportional to 130.98, 195.63 and 94.80 is: 141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.98 : 195.63 = 94.80 : x
  2. Step 2: Convert to fraction form
    130.98/195.63 = 94.80/x
  3. Step 3: Cross multiply
    130.98x = 195.63 × 94.80
  4. Step 4: Simplify right side
    130.98x = 18,545.72
  5. Step 5: Solve for x
    x = 18,545.72/130.98
  6. Step 6: Final answer
    x = 141.59

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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.