Home / 120,812.28-181,224.68-30,855.84

Finding the Fourth Proportional to 120,812.28, 181,224.68 and 30,855.84

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Solution

The fourth proportional to 120,812.28, 181,224.68 and 30,855.84 is: 46,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,812.28 : 181,224.68 = 30,855.84 : x
  2. Step 2: Convert to fraction form
    120,812.28/181,224.68 = 30,855.84/x
  3. Step 3: Cross multiply
    120,812.28x = 181,224.68 × 30,855.84
  4. Step 4: Simplify right side
    120,812.28x = 5,591,839,730.13
  5. Step 5: Solve for x
    x = 5,591,839,730.13/120,812.28
  6. Step 6: Final answer
    x = 46,285.36

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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.