Home / 133,281.44-199,822.32-80,678.24

Finding the Fourth Proportional to 133,281.44, 199,822.32 and 80,678.24

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Solution

The fourth proportional to 133,281.44, 199,822.32 and 80,678.24 is: 120,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,281.44 : 199,822.32 = 80,678.24 : x
  2. Step 2: Convert to fraction form
    133,281.44/199,822.32 = 80,678.24/x
  3. Step 3: Cross multiply
    133,281.44x = 199,822.32 × 80,678.24
  4. Step 4: Simplify right side
    133,281.44x = 16,121,313,090.32
  5. Step 5: Solve for x
    x = 16,121,313,090.32/133,281.44
  6. Step 6: Final answer
    x = 120,956.92

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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.