Home / 100,439.07-150,517.77-72,226.38

Finding the Fourth Proportional to 100,439.07, 150,517.77 and 72,226.38

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Solution

The fourth proportional to 100,439.07, 150,517.77 and 72,226.38 is: 108,238.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,439.07 : 150,517.77 = 72,226.38 : x
  2. Step 2: Convert to fraction form
    100,439.07/150,517.77 = 72,226.38/x
  3. Step 3: Cross multiply
    100,439.07x = 150,517.77 × 72,226.38
  4. Step 4: Simplify right side
    100,439.07x = 10,871,353,652.77
  5. Step 5: Solve for x
    x = 10,871,353,652.77/100,439.07
  6. Step 6: Final answer
    x = 108,238.29

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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.