Home / 149,832.72-206,769.46-81,850.20

Finding the Fourth Proportional to 149,832.72, 206,769.46 and 81,850.20

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Solution

The fourth proportional to 149,832.72, 206,769.46 and 81,850.20 is: 112,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,832.72 : 206,769.46 = 81,850.20 : x
  2. Step 2: Convert to fraction form
    149,832.72/206,769.46 = 81,850.20/x
  3. Step 3: Cross multiply
    149,832.72x = 206,769.46 × 81,850.20
  4. Step 4: Simplify right side
    149,832.72x = 16,924,121,654.89
  5. Step 5: Solve for x
    x = 16,924,121,654.89/149,832.72
  6. Step 6: Final answer
    x = 112,953.44

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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.