Home / 118,890.36-178,336.22-30,144.06

Finding the Fourth Proportional to 118,890.36, 178,336.22 and 30,144.06

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Solution

The fourth proportional to 118,890.36, 178,336.22 and 30,144.06 is: 45,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,890.36 : 178,336.22 = 30,144.06 : x
  2. Step 2: Convert to fraction form
    118,890.36/178,336.22 = 30,144.06/x
  3. Step 3: Cross multiply
    118,890.36x = 178,336.22 × 30,144.06
  4. Step 4: Simplify right side
    118,890.36x = 5,375,777,715.85
  5. Step 5: Solve for x
    x = 5,375,777,715.85/118,890.36
  6. Step 6: Final answer
    x = 45,216.26

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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.