Home / 120,629.84-181,027.76-54,144.32

Finding the Fourth Proportional to 120,629.84, 181,027.76 and 54,144.32

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Solution

The fourth proportional to 120,629.84, 181,027.76 and 54,144.32 is: 81,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,629.84 : 181,027.76 = 54,144.32 : x
  2. Step 2: Convert to fraction form
    120,629.84/181,027.76 = 54,144.32/x
  3. Step 3: Cross multiply
    120,629.84x = 181,027.76 × 54,144.32
  4. Step 4: Simplify right side
    120,629.84x = 9,801,624,966.32
  5. Step 5: Solve for x
    x = 9,801,624,966.32/120,629.84
  6. Step 6: Final answer
    x = 81,253.73

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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.