Home / 118,757.36-178,138.27-55,542.54

Finding the Fourth Proportional to 118,757.36, 178,138.27 and 55,542.54

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Solution

The fourth proportional to 118,757.36, 178,138.27 and 55,542.54 is: 83,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,757.36 : 178,138.27 = 55,542.54 : x
  2. Step 2: Convert to fraction form
    118,757.36/178,138.27 = 55,542.54/x
  3. Step 3: Cross multiply
    118,757.36x = 178,138.27 × 55,542.54
  4. Step 4: Simplify right side
    118,757.36x = 9,894,251,987.01
  5. Step 5: Solve for x
    x = 9,894,251,987.01/118,757.36
  6. Step 6: Final answer
    x = 83,314.85

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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.