Home / 120,816.62-181,225.06-45,919.16

Finding the Fourth Proportional to 120,816.62, 181,225.06 and 45,919.16

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Solution

The fourth proportional to 120,816.62, 181,225.06 and 45,919.16 is: 68,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,816.62 : 181,225.06 = 45,919.16 : x
  2. Step 2: Convert to fraction form
    120,816.62/181,225.06 = 45,919.16/x
  3. Step 3: Cross multiply
    120,816.62x = 181,225.06 × 45,919.16
  4. Step 4: Simplify right side
    120,816.62x = 8,321,702,526.15
  5. Step 5: Solve for x
    x = 8,321,702,526.15/120,816.62
  6. Step 6: Final answer
    x = 68,878.79

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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.