Home / 136,610.66-188,523.53-76,185.12

Finding the Fourth Proportional to 136,610.66, 188,523.53 and 76,185.12

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Solution

The fourth proportional to 136,610.66, 188,523.53 and 76,185.12 is: 105,135.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,610.66 : 188,523.53 = 76,185.12 : x
  2. Step 2: Convert to fraction form
    136,610.66/188,523.53 = 76,185.12/x
  3. Step 3: Cross multiply
    136,610.66x = 188,523.53 × 76,185.12
  4. Step 4: Simplify right side
    136,610.66x = 14,362,687,755.87
  5. Step 5: Solve for x
    x = 14,362,687,755.87/136,610.66
  6. Step 6: Final answer
    x = 105,135.92

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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.