Home / 115,021.83-172,550.16-36,128.64

Finding the Fourth Proportional to 115,021.83, 172,550.16 and 36,128.64

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Solution

The fourth proportional to 115,021.83, 172,550.16 and 36,128.64 is: 54,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,021.83 : 172,550.16 = 36,128.64 : x
  2. Step 2: Convert to fraction form
    115,021.83/172,550.16 = 36,128.64/x
  3. Step 3: Cross multiply
    115,021.83x = 172,550.16 × 36,128.64
  4. Step 4: Simplify right side
    115,021.83x = 6,234,002,612.58
  5. Step 5: Solve for x
    x = 6,234,002,612.58/115,021.83
  6. Step 6: Final answer
    x = 54,198.43

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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.