Home / 115,017.22-172,296.09-91,364.82

Finding the Fourth Proportional to 115,017.22, 172,296.09 and 91,364.82

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Solution

The fourth proportional to 115,017.22, 172,296.09 and 91,364.82 is: 136,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,017.22 : 172,296.09 = 91,364.82 : x
  2. Step 2: Convert to fraction form
    115,017.22/172,296.09 = 91,364.82/x
  3. Step 3: Cross multiply
    115,017.22x = 172,296.09 × 91,364.82
  4. Step 4: Simplify right side
    115,017.22x = 15,741,801,249.55
  5. Step 5: Solve for x
    x = 15,741,801,249.55/115,017.22
  6. Step 6: Final answer
    x = 136,864.73

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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.