Home / 165,836.30-248,857.05-87,007.10

Finding the Fourth Proportional to 165,836.30, 248,857.05 and 87,007.10

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Solution

The fourth proportional to 165,836.30, 248,857.05 and 87,007.10 is: 130,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,836.30 : 248,857.05 = 87,007.10 : x
  2. Step 2: Convert to fraction form
    165,836.30/248,857.05 = 87,007.10/x
  3. Step 3: Cross multiply
    165,836.30x = 248,857.05 × 87,007.10
  4. Step 4: Simplify right side
    165,836.30x = 21,652,330,235.06
  5. Step 5: Solve for x
    x = 21,652,330,235.06/165,836.30
  6. Step 6: Final answer
    x = 130,564.48

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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.