Home / 119,213.68-178,817.28-55,163.20

Finding the Fourth Proportional to 119,213.68, 178,817.28 and 55,163.20

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Solution

The fourth proportional to 119,213.68, 178,817.28 and 55,163.20 is: 82,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,213.68 : 178,817.28 = 55,163.20 : x
  2. Step 2: Convert to fraction form
    119,213.68/178,817.28 = 55,163.20/x
  3. Step 3: Cross multiply
    119,213.68x = 178,817.28 × 55,163.20
  4. Step 4: Simplify right side
    119,213.68x = 9,864,133,380.10
  5. Step 5: Solve for x
    x = 9,864,133,380.10/119,213.68
  6. Step 6: Final answer
    x = 82,743.30

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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.