Home / 120,837.04-166,801.66-80,536.12

Finding the Fourth Proportional to 120,837.04, 166,801.66 and 80,536.12

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Solution

The fourth proportional to 120,837.04, 166,801.66 and 80,536.12 is: 111,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,837.04 : 166,801.66 = 80,536.12 : x
  2. Step 2: Convert to fraction form
    120,837.04/166,801.66 = 80,536.12/x
  3. Step 3: Cross multiply
    120,837.04x = 166,801.66 × 80,536.12
  4. Step 4: Simplify right side
    120,837.04x = 13,433,558,505.96
  5. Step 5: Solve for x
    x = 13,433,558,505.96/120,837.04
  6. Step 6: Final answer
    x = 111,170.87

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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.