Home / 165,761.54-248,715.82-86,857.01

Finding the Fourth Proportional to 165,761.54, 248,715.82 and 86,857.01

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Solution

The fourth proportional to 165,761.54, 248,715.82 and 86,857.01 is: 130,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,761.54 : 248,715.82 = 86,857.01 : x
  2. Step 2: Convert to fraction form
    165,761.54/248,715.82 = 86,857.01/x
  3. Step 3: Cross multiply
    165,761.54x = 248,715.82 × 86,857.01
  4. Step 4: Simplify right side
    165,761.54x = 21,602,711,774.00
  5. Step 5: Solve for x
    x = 21,602,711,774.00/165,761.54
  6. Step 6: Final answer
    x = 130,324.03

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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.