Home / 121,202.16-181,731-50,069.52

Finding the Fourth Proportional to 121,202.16, 181,731 and 50,069.52

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Solution

The fourth proportional to 121,202.16, 181,731 and 50,069.52 is: 75,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,202.16 : 181,731 = 50,069.52 : x
  2. Step 2: Convert to fraction form
    121,202.16/181,731 = 50,069.52/x
  3. Step 3: Cross multiply
    121,202.16x = 181,731 × 50,069.52
  4. Step 4: Simplify right side
    121,202.16x = 9,099,183,939.12
  5. Step 5: Solve for x
    x = 9,099,183,939.12/121,202.16
  6. Step 6: Final answer
    x = 75,074.44

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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.