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Finding the Fourth Proportional to 161,956.67, 223,504.52 and 90,350.64

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Solution

The fourth proportional to 161,956.67, 223,504.52 and 90,350.64 is: 124,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,956.67 : 223,504.52 = 90,350.64 : x
  2. Step 2: Convert to fraction form
    161,956.67/223,504.52 = 90,350.64/x
  3. Step 3: Cross multiply
    161,956.67x = 223,504.52 × 90,350.64
  4. Step 4: Simplify right side
    161,956.67x = 20,193,775,973.14
  5. Step 5: Solve for x
    x = 20,193,775,973.14/161,956.67
  6. Step 6: Final answer
    x = 124,686.29

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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.