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Finding the Fourth Proportional to 149,652.44, 206,555.72 and 86,027.15

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Solution

The fourth proportional to 149,652.44, 206,555.72 and 86,027.15 is: 118,737.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,652.44 : 206,555.72 = 86,027.15 : x
  2. Step 2: Convert to fraction form
    149,652.44/206,555.72 = 86,027.15/x
  3. Step 3: Cross multiply
    149,652.44x = 206,555.72 × 86,027.15
  4. Step 4: Simplify right side
    149,652.44x = 17,769,399,477.66
  5. Step 5: Solve for x
    x = 17,769,399,477.66/149,652.44
  6. Step 6: Final answer
    x = 118,737.79

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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.