Home / 149,848.08-206,786.83-81,865.41

Finding the Fourth Proportional to 149,848.08, 206,786.83 and 81,865.41

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Solution

The fourth proportional to 149,848.08, 206,786.83 and 81,865.41 is: 112,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,848.08 : 206,786.83 = 81,865.41 : x
  2. Step 2: Convert to fraction form
    149,848.08/206,786.83 = 81,865.41/x
  3. Step 3: Cross multiply
    149,848.08x = 206,786.83 × 81,865.41
  4. Step 4: Simplify right side
    149,848.08x = 16,928,688,620.55
  5. Step 5: Solve for x
    x = 16,928,688,620.55/149,848.08
  6. Step 6: Final answer
    x = 112,972.34

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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.