Home / 165,910.30-248,689.41-81,551.50

Finding the Fourth Proportional to 165,910.30, 248,689.41 and 81,551.50

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Solution

The fourth proportional to 165,910.30, 248,689.41 and 81,551.50 is: 122,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,910.30 : 248,689.41 = 81,551.50 : x
  2. Step 2: Convert to fraction form
    165,910.30/248,689.41 = 81,551.50/x
  3. Step 3: Cross multiply
    165,910.30x = 248,689.41 × 81,551.50
  4. Step 4: Simplify right side
    165,910.30x = 20,280,994,419.62
  5. Step 5: Solve for x
    x = 20,280,994,419.62/165,910.30
  6. Step 6: Final answer
    x = 122,240.72

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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.