Home / 119,719.31-165,209.51-66,003.38

Finding the Fourth Proportional to 119,719.31, 165,209.51 and 66,003.38

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Solution

The fourth proportional to 119,719.31, 165,209.51 and 66,003.38 is: 91,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,719.31 : 165,209.51 = 66,003.38 : x
  2. Step 2: Convert to fraction form
    119,719.31/165,209.51 = 66,003.38/x
  3. Step 3: Cross multiply
    119,719.31x = 165,209.51 × 66,003.38
  4. Step 4: Simplify right side
    119,719.31x = 10,904,384,912.08
  5. Step 5: Solve for x
    x = 10,904,384,912.08/119,719.31
  6. Step 6: Final answer
    x = 91,082.93

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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.