Home / 165,321.05-247,998.87-70,561.31

Finding the Fourth Proportional to 165,321.05, 247,998.87 and 70,561.31

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Solution

The fourth proportional to 165,321.05, 247,998.87 and 70,561.31 is: 105,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,321.05 : 247,998.87 = 70,561.31 : x
  2. Step 2: Convert to fraction form
    165,321.05/247,998.87 = 70,561.31/x
  3. Step 3: Cross multiply
    165,321.05x = 247,998.87 × 70,561.31
  4. Step 4: Simplify right side
    165,321.05x = 17,499,123,905.73
  5. Step 5: Solve for x
    x = 17,499,123,905.73/165,321.05
  6. Step 6: Final answer
    x = 105,849.34

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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.