Home / 148,997.32-205,616.30-81,929.32

Finding the Fourth Proportional to 148,997.32, 205,616.30 and 81,929.32

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Solution

The fourth proportional to 148,997.32, 205,616.30 and 81,929.32 is: 113,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,997.32 : 205,616.30 = 81,929.32 : x
  2. Step 2: Convert to fraction form
    148,997.32/205,616.30 = 81,929.32/x
  3. Step 3: Cross multiply
    148,997.32x = 205,616.30 × 81,929.32
  4. Step 4: Simplify right side
    148,997.32x = 16,846,003,639.92
  5. Step 5: Solve for x
    x = 16,846,003,639.92/148,997.32
  6. Step 6: Final answer
    x = 113,062.46

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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.