Home / 171,982.77-257,856.41-87,579.56

Finding the Fourth Proportional to 171,982.77, 257,856.41 and 87,579.56

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Solution

The fourth proportional to 171,982.77, 257,856.41 and 87,579.56 is: 131,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,982.77 : 257,856.41 = 87,579.56 : x
  2. Step 2: Convert to fraction form
    171,982.77/257,856.41 = 87,579.56/x
  3. Step 3: Cross multiply
    171,982.77x = 257,856.41 × 87,579.56
  4. Step 4: Simplify right side
    171,982.77x = 22,582,949,203.80
  5. Step 5: Solve for x
    x = 22,582,949,203.80/171,982.77
  6. Step 6: Final answer
    x = 131,309.37

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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.