Home / 165,761.07-248,715.11-86,856.54

Finding the Fourth Proportional to 165,761.07, 248,715.11 and 86,856.54

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Solution

The fourth proportional to 165,761.07, 248,715.11 and 86,856.54 is: 130,323.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,761.07 : 248,715.11 = 86,856.54 : x
  2. Step 2: Convert to fraction form
    165,761.07/248,715.11 = 86,856.54/x
  3. Step 3: Cross multiply
    165,761.07x = 248,715.11 × 86,856.54
  4. Step 4: Simplify right side
    165,761.07x = 21,602,534,117.46
  5. Step 5: Solve for x
    x = 21,602,534,117.46/165,761.07
  6. Step 6: Final answer
    x = 130,323.33

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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.