Home / 120,665.20-181,068.36-50,538.64

Finding the Fourth Proportional to 120,665.20, 181,068.36 and 50,538.64

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Solution

The fourth proportional to 120,665.20, 181,068.36 and 50,538.64 is: 75,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,665.20 : 181,068.36 = 50,538.64 : x
  2. Step 2: Convert to fraction form
    120,665.20/181,068.36 = 50,538.64/x
  3. Step 3: Cross multiply
    120,665.20x = 181,068.36 × 50,538.64
  4. Step 4: Simplify right side
    120,665.20x = 9,150,948,661.43
  5. Step 5: Solve for x
    x = 9,150,948,661.43/120,665.20
  6. Step 6: Final answer
    x = 75,837.51

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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.