Home / 148,822.31-205,374.83-81,754.31

Finding the Fourth Proportional to 148,822.31, 205,374.83 and 81,754.31

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Solution

The fourth proportional to 148,822.31, 205,374.83 and 81,754.31 is: 112,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,822.31 : 205,374.83 = 81,754.31 : x
  2. Step 2: Convert to fraction form
    148,822.31/205,374.83 = 81,754.31/x
  3. Step 3: Cross multiply
    148,822.31x = 205,374.83 × 81,754.31
  4. Step 4: Simplify right side
    148,822.31x = 16,790,277,622.68
  5. Step 5: Solve for x
    x = 16,790,277,622.68/148,822.31
  6. Step 6: Final answer
    x = 112,820.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.