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Finding the Fourth Proportional to 149,992.01, 206,991.19 and 101,608.74

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Solution

The fourth proportional to 149,992.01, 206,991.19 and 101,608.74 is: 140,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,992.01 : 206,991.19 = 101,608.74 : x
  2. Step 2: Convert to fraction form
    149,992.01/206,991.19 = 101,608.74/x
  3. Step 3: Cross multiply
    149,992.01x = 206,991.19 × 101,608.74
  4. Step 4: Simplify right side
    149,992.01x = 21,032,112,464.00
  5. Step 5: Solve for x
    x = 21,032,112,464.00/149,992.01
  6. Step 6: Final answer
    x = 140,221.55

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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.