Home / 120,126.29-165,759.71-66,403.85

Finding the Fourth Proportional to 120,126.29, 165,759.71 and 66,403.85

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Solution

The fourth proportional to 120,126.29, 165,759.71 and 66,403.85 is: 91,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,126.29 : 165,759.71 = 66,403.85 : x
  2. Step 2: Convert to fraction form
    120,126.29/165,759.71 = 66,403.85/x
  3. Step 3: Cross multiply
    120,126.29x = 165,759.71 × 66,403.85
  4. Step 4: Simplify right side
    120,126.29x = 11,007,082,670.49
  5. Step 5: Solve for x
    x = 11,007,082,670.49/120,126.29
  6. Step 6: Final answer
    x = 91,629.26

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1.5x scale

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.