Home / 172,100.36-258,141.26-53,758.12

Finding the Fourth Proportional to 172,100.36, 258,141.26 and 53,758.12

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Solution

The fourth proportional to 172,100.36, 258,141.26 and 53,758.12 is: 80,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,100.36 : 258,141.26 = 53,758.12 : x
  2. Step 2: Convert to fraction form
    172,100.36/258,141.26 = 53,758.12/x
  3. Step 3: Cross multiply
    172,100.36x = 258,141.26 × 53,758.12
  4. Step 4: Simplify right side
    172,100.36x = 13,877,188,832.03
  5. Step 5: Solve for x
    x = 13,877,188,832.03/172,100.36
  6. Step 6: Final answer
    x = 80,634.28

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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.