Home / 165,803.10-248,643.90-53,512.80

Finding the Fourth Proportional to 165,803.10, 248,643.90 and 53,512.80

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Solution

The fourth proportional to 165,803.10, 248,643.90 and 53,512.80 is: 80,249.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,803.10 : 248,643.90 = 53,512.80 : x
  2. Step 2: Convert to fraction form
    165,803.10/248,643.90 = 53,512.80/x
  3. Step 3: Cross multiply
    165,803.10x = 248,643.90 × 53,512.80
  4. Step 4: Simplify right side
    165,803.10x = 13,305,631,291.92
  5. Step 5: Solve for x
    x = 13,305,631,291.92/165,803.10
  6. Step 6: Final answer
    x = 80,249.59

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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.