Home / 171,983.36-257,908.62-66,788.12

Finding the Fourth Proportional to 171,983.36, 257,908.62 and 66,788.12

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Solution

The fourth proportional to 171,983.36, 257,908.62 and 66,788.12 is: 100,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,983.36 : 257,908.62 = 66,788.12 : x
  2. Step 2: Convert to fraction form
    171,983.36/257,908.62 = 66,788.12/x
  3. Step 3: Cross multiply
    171,983.36x = 257,908.62 × 66,788.12
  4. Step 4: Simplify right side
    171,983.36x = 17,225,231,861.59
  5. Step 5: Solve for x
    x = 17,225,231,861.59/171,983.36
  6. Step 6: Final answer
    x = 100,156.39

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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.