Home / 172,502.18-258,736.26-54,170.36

Finding the Fourth Proportional to 172,502.18, 258,736.26 and 54,170.36

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Solution

The fourth proportional to 172,502.18, 258,736.26 and 54,170.36 is: 81,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,502.18 : 258,736.26 = 54,170.36 : x
  2. Step 2: Convert to fraction form
    172,502.18/258,736.26 = 54,170.36/x
  3. Step 3: Cross multiply
    172,502.18x = 258,736.26 × 54,170.36
  4. Step 4: Simplify right side
    172,502.18x = 14,015,836,349.25
  5. Step 5: Solve for x
    x = 14,015,836,349.25/172,502.18
  6. Step 6: Final answer
    x = 81,250.20

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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.