Home / 165,914.30-248,695.40-81,555.50

Finding the Fourth Proportional to 165,914.30, 248,695.40 and 81,555.50

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Solution

The fourth proportional to 165,914.30, 248,695.40 and 81,555.50 is: 122,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,914.30 : 248,695.40 = 81,555.50 : x
  2. Step 2: Convert to fraction form
    165,914.30/248,695.40 = 81,555.50/x
  3. Step 3: Cross multiply
    165,914.30x = 248,695.40 × 81,555.50
  4. Step 4: Simplify right side
    165,914.30x = 20,282,477,694.70
  5. Step 5: Solve for x
    x = 20,282,477,694.70/165,914.30
  6. Step 6: Final answer
    x = 122,246.71

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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.