Home / 121,723.11-182,735.01-57,742.43

Finding the Fourth Proportional to 121,723.11, 182,735.01 and 57,742.43

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Solution

The fourth proportional to 121,723.11, 182,735.01 and 57,742.43 is: 86,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,723.11 : 182,735.01 = 57,742.43 : x
  2. Step 2: Convert to fraction form
    121,723.11/182,735.01 = 57,742.43/x
  3. Step 3: Cross multiply
    121,723.11x = 182,735.01 × 57,742.43
  4. Step 4: Simplify right side
    121,723.11x = 10,551,562,609.80
  5. Step 5: Solve for x
    x = 10,551,562,609.80/121,723.11
  6. Step 6: Final answer
    x = 86,684.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.