Home / 78,118.43-117,183.71-25,533.23

Finding the Fourth Proportional to 78,118.43, 117,183.71 and 25,533.23

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Solution

The fourth proportional to 78,118.43, 117,183.71 and 25,533.23 is: 38,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,118.43 : 117,183.71 = 25,533.23 : x
  2. Step 2: Convert to fraction form
    78,118.43/117,183.71 = 25,533.23/x
  3. Step 3: Cross multiply
    78,118.43x = 117,183.71 × 25,533.23
  4. Step 4: Simplify right side
    78,118.43x = 2,992,077,906.10
  5. Step 5: Solve for x
    x = 2,992,077,906.10/78,118.43
  6. Step 6: Final answer
    x = 38,301.82

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1.5x scale

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.