Home / 115,500.17-172,887.29-73,427.75

Finding the Fourth Proportional to 115,500.17, 172,887.29 and 73,427.75

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Solution

The fourth proportional to 115,500.17, 172,887.29 and 73,427.75 is: 109,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,500.17 : 172,887.29 = 73,427.75 : x
  2. Step 2: Convert to fraction form
    115,500.17/172,887.29 = 73,427.75/x
  3. Step 3: Cross multiply
    115,500.17x = 172,887.29 × 73,427.75
  4. Step 4: Simplify right side
    115,500.17x = 12,694,724,923.26
  5. Step 5: Solve for x
    x = 12,694,724,923.26/115,500.17
  6. Step 6: Final answer
    x = 109,910.88

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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.