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Finding the Fourth Proportional to 121,324.62, 181,037.88 and 108,716.16

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Solution

The fourth proportional to 121,324.62, 181,037.88 and 108,716.16 is: 162,223.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,324.62 : 181,037.88 = 108,716.16 : x
  2. Step 2: Convert to fraction form
    121,324.62/181,037.88 = 108,716.16/x
  3. Step 3: Cross multiply
    121,324.62x = 181,037.88 × 108,716.16
  4. Step 4: Simplify right side
    121,324.62x = 19,681,742,584.56
  5. Step 5: Solve for x
    x = 19,681,742,584.56/121,324.62
  6. Step 6: Final answer
    x = 162,223.81

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.