Home / 122,105.16-182,936.25-90,163.31

Finding the Fourth Proportional to 122,105.16, 182,936.25 and 90,163.31

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Solution

The fourth proportional to 122,105.16, 182,936.25 and 90,163.31 is: 135,081.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,105.16 : 182,936.25 = 90,163.31 : x
  2. Step 2: Convert to fraction form
    122,105.16/182,936.25 = 90,163.31/x
  3. Step 3: Cross multiply
    122,105.16x = 182,936.25 × 90,163.31
  4. Step 4: Simplify right side
    122,105.16x = 16,494,136,904.31
  5. Step 5: Solve for x
    x = 16,494,136,904.31/122,105.16
  6. Step 6: Final answer
    x = 135,081.41

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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.