Home / 149,848.32-206,787.24-81,865.56

Finding the Fourth Proportional to 149,848.32, 206,787.24 and 81,865.56

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Solution

The fourth proportional to 149,848.32, 206,787.24 and 81,865.56 is: 112,972.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,848.32 : 206,787.24 = 81,865.56 : x
  2. Step 2: Convert to fraction form
    149,848.32/206,787.24 = 81,865.56/x
  3. Step 3: Cross multiply
    149,848.32x = 206,787.24 × 81,865.56
  4. Step 4: Simplify right side
    149,848.32x = 16,928,753,203.45
  5. Step 5: Solve for x
    x = 16,928,753,203.45/149,848.32
  6. Step 6: Final answer
    x = 112,972.59

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1.5x scale

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.