Home / 123,382.29-170,268.11-66,793.67

Finding the Fourth Proportional to 123,382.29, 170,268.11 and 66,793.67

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Solution

The fourth proportional to 123,382.29, 170,268.11 and 66,793.67 is: 92,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,382.29 : 170,268.11 = 66,793.67 : x
  2. Step 2: Convert to fraction form
    123,382.29/170,268.11 = 66,793.67/x
  3. Step 3: Cross multiply
    123,382.29x = 170,268.11 × 66,793.67
  4. Step 4: Simplify right side
    123,382.29x = 11,372,831,266.51
  5. Step 5: Solve for x
    x = 11,372,831,266.51/123,382.29
  6. Step 6: Final answer
    x = 92,175.56

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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.