Home / 90,745.07-136,016.69-68,486.27

Finding the Fourth Proportional to 90,745.07, 136,016.69 and 68,486.27

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Solution

The fourth proportional to 90,745.07, 136,016.69 and 68,486.27 is: 102,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.07 : 136,016.69 = 68,486.27 : x
  2. Step 2: Convert to fraction form
    90,745.07/136,016.69 = 68,486.27/x
  3. Step 3: Cross multiply
    90,745.07x = 136,016.69 × 68,486.27
  4. Step 4: Simplify right side
    90,745.07x = 9,315,274,733.33
  5. Step 5: Solve for x
    x = 9,315,274,733.33/90,745.07
  6. Step 6: Final answer
    x = 102,653.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.