Home / 119,849.64-165,391.38-66,135.12

Finding the Fourth Proportional to 119,849.64, 165,391.38 and 66,135.12

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Solution

The fourth proportional to 119,849.64, 165,391.38 and 66,135.12 is: 91,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,849.64 : 165,391.38 = 66,135.12 : x
  2. Step 2: Convert to fraction form
    119,849.64/165,391.38 = 66,135.12/x
  3. Step 3: Cross multiply
    119,849.64x = 165,391.38 × 66,135.12
  4. Step 4: Simplify right side
    119,849.64x = 10,938,178,763.27
  5. Step 5: Solve for x
    x = 10,938,178,763.27/119,849.64
  6. Step 6: Final answer
    x = 91,265.85

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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.