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Finding the Fourth Proportional to 130.92, 180.81 and 94.13

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Solution

The fourth proportional to 130.92, 180.81 and 94.13 is: 130.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.92 : 180.81 = 94.13 : x
  2. Step 2: Convert to fraction form
    130.92/180.81 = 94.13/x
  3. Step 3: Cross multiply
    130.92x = 180.81 × 94.13
  4. Step 4: Simplify right side
    130.92x = 17,019.65
  5. Step 5: Solve for x
    x = 17,019.65/130.92
  6. Step 6: Final answer
    x = 130.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.