Home / 172,579.24-258,901.50-67,391.56

Finding the Fourth Proportional to 172,579.24, 258,901.50 and 67,391.56

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Solution

The fourth proportional to 172,579.24, 258,901.50 and 67,391.56 is: 101,100.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,579.24 : 258,901.50 = 67,391.56 : x
  2. Step 2: Convert to fraction form
    172,579.24/258,901.50 = 67,391.56/x
  3. Step 3: Cross multiply
    172,579.24x = 258,901.50 × 67,391.56
  4. Step 4: Simplify right side
    172,579.24x = 17,447,775,971.34
  5. Step 5: Solve for x
    x = 17,447,775,971.34/172,579.24
  6. Step 6: Final answer
    x = 101,100.09

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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.