Home / 109,893.73-164,719.50-71,897.34

Finding the Fourth Proportional to 109,893.73, 164,719.50 and 71,897.34

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Solution

The fourth proportional to 109,893.73, 164,719.50 and 71,897.34 is: 107,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,893.73 : 164,719.50 = 71,897.34 : x
  2. Step 2: Convert to fraction form
    109,893.73/164,719.50 = 71,897.34/x
  3. Step 3: Cross multiply
    109,893.73x = 164,719.50 × 71,897.34
  4. Step 4: Simplify right side
    109,893.73x = 11,842,893,896.13
  5. Step 5: Solve for x
    x = 11,842,893,896.13/109,893.73
  6. Step 6: Final answer
    x = 107,766.78

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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.