Home / 117,640.62-162,233.37-90,740.52

Finding the Fourth Proportional to 117,640.62, 162,233.37 and 90,740.52

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Solution

The fourth proportional to 117,640.62, 162,233.37 and 90,740.52 is: 125,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,640.62 : 162,233.37 = 90,740.52 : x
  2. Step 2: Convert to fraction form
    117,640.62/162,233.37 = 90,740.52/x
  3. Step 3: Cross multiply
    117,640.62x = 162,233.37 × 90,740.52
  4. Step 4: Simplify right side
    117,640.62x = 14,721,140,355.15
  5. Step 5: Solve for x
    x = 14,721,140,355.15/117,640.62
  6. Step 6: Final answer
    x = 125,136.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.