Home / 100,052.13-150,078.48-40,887.81

Finding the Fourth Proportional to 100,052.13, 150,078.48 and 40,887.81

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Solution

The fourth proportional to 100,052.13, 150,078.48 and 40,887.81 is: 61,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,052.13 : 150,078.48 = 40,887.81 : x
  2. Step 2: Convert to fraction form
    100,052.13/150,078.48 = 40,887.81/x
  3. Step 3: Cross multiply
    100,052.13x = 150,078.48 × 40,887.81
  4. Step 4: Simplify right side
    100,052.13x = 6,136,380,375.33
  5. Step 5: Solve for x
    x = 6,136,380,375.33/100,052.13
  6. Step 6: Final answer
    x = 61,331.83

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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.