Home / 165,839.30-248,861.55-87,010.10

Finding the Fourth Proportional to 165,839.30, 248,861.55 and 87,010.10

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Solution

The fourth proportional to 165,839.30, 248,861.55 and 87,010.10 is: 130,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,839.30 : 248,861.55 = 87,010.10 : x
  2. Step 2: Convert to fraction form
    165,839.30/248,861.55 = 87,010.10/x
  3. Step 3: Cross multiply
    165,839.30x = 248,861.55 × 87,010.10
  4. Step 4: Simplify right side
    165,839.30x = 21,653,468,351.66
  5. Step 5: Solve for x
    x = 21,653,468,351.66/165,839.30
  6. Step 6: Final answer
    x = 130,568.98

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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.