Home / 172,772.30-259,141.44-60,431.78

Finding the Fourth Proportional to 172,772.30, 259,141.44 and 60,431.78

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Solution

The fourth proportional to 172,772.30, 259,141.44 and 60,431.78 is: 90,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,772.30 : 259,141.44 = 60,431.78 : x
  2. Step 2: Convert to fraction form
    172,772.30/259,141.44 = 60,431.78/x
  3. Step 3: Cross multiply
    172,772.30x = 259,141.44 × 60,431.78
  4. Step 4: Simplify right side
    172,772.30x = 15,660,378,490.96
  5. Step 5: Solve for x
    x = 15,660,378,490.96/172,772.30
  6. Step 6: Final answer
    x = 90,641.72

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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.