Home / 172,120.83-258,181.44-53,792.79

Finding the Fourth Proportional to 172,120.83, 258,181.44 and 53,792.79

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Solution

The fourth proportional to 172,120.83, 258,181.44 and 53,792.79 is: 80,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,120.83 : 258,181.44 = 53,792.79 : x
  2. Step 2: Convert to fraction form
    172,120.83/258,181.44 = 53,792.79/x
  3. Step 3: Cross multiply
    172,120.83x = 258,181.44 × 53,792.79
  4. Step 4: Simplify right side
    172,120.83x = 13,888,299,983.82
  5. Step 5: Solve for x
    x = 13,888,299,983.82/172,120.83
  6. Step 6: Final answer
    x = 80,689.25

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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.