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Finding the Fourth Proportional to 130.93, 180.62 and 101.37

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Solution

The fourth proportional to 130.93, 180.62 and 101.37 is: 139.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.93 : 180.62 = 101.37 : x
  2. Step 2: Convert to fraction form
    130.93/180.62 = 101.37/x
  3. Step 3: Cross multiply
    130.93x = 180.62 × 101.37
  4. Step 4: Simplify right side
    130.93x = 18,309.45
  5. Step 5: Solve for x
    x = 18,309.45/130.93
  6. Step 6: Final answer
    x = 139.84

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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.