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Finding the Fourth Proportional to 161,882.40, 223,142.40 and 121,537.92

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Solution

The fourth proportional to 161,882.40, 223,142.40 and 121,537.92 is: 167,530.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,882.40 : 223,142.40 = 121,537.92 : x
  2. Step 2: Convert to fraction form
    161,882.40/223,142.40 = 121,537.92/x
  3. Step 3: Cross multiply
    161,882.40x = 223,142.40 × 121,537.92
  4. Step 4: Simplify right side
    161,882.40x = 27,120,263,159.81
  5. Step 5: Solve for x
    x = 27,120,263,159.81/161,882.40
  6. Step 6: Final answer
    x = 167,530.65

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