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Finding the Fourth Proportional to 149,027.45, 206,199.42 and 129,947.01

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Solution

The fourth proportional to 149,027.45, 206,199.42 and 129,947.01 is: 179,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,027.45 : 206,199.42 = 129,947.01 : x
  2. Step 2: Convert to fraction form
    149,027.45/206,199.42 = 129,947.01/x
  3. Step 3: Cross multiply
    149,027.45x = 206,199.42 × 129,947.01
  4. Step 4: Simplify right side
    149,027.45x = 26,794,999,095.53
  5. Step 5: Solve for x
    x = 26,794,999,095.53/149,027.45
  6. Step 6: Final answer
    x = 179,799.08

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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.