Home / 115,179.12-172,768.77-75,911.58

Finding the Fourth Proportional to 115,179.12, 172,768.77 and 75,911.58

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Solution

The fourth proportional to 115,179.12, 172,768.77 and 75,911.58 is: 113,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,179.12 : 172,768.77 = 75,911.58 : x
  2. Step 2: Convert to fraction form
    115,179.12/172,768.77 = 75,911.58/x
  3. Step 3: Cross multiply
    115,179.12x = 172,768.77 × 75,911.58
  4. Step 4: Simplify right side
    115,179.12x = 13,115,150,305.36
  5. Step 5: Solve for x
    x = 13,115,150,305.36/115,179.12
  6. Step 6: Final answer
    x = 113,867.43

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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.