Home / 115,249.17-172,771.16-45,177.33

Finding the Fourth Proportional to 115,249.17, 172,771.16 and 45,177.33

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Solution

The fourth proportional to 115,249.17, 172,771.16 and 45,177.33 is: 67,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,249.17 : 172,771.16 = 45,177.33 : x
  2. Step 2: Convert to fraction form
    115,249.17/172,771.16 = 45,177.33/x
  3. Step 3: Cross multiply
    115,249.17x = 172,771.16 × 45,177.33
  4. Step 4: Simplify right side
    115,249.17x = 7,805,339,483.92
  5. Step 5: Solve for x
    x = 7,805,339,483.92/115,249.17
  6. Step 6: Final answer
    x = 67,725.78

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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.