Home / 120,343.16-166,079.69-66,634.08

Finding the Fourth Proportional to 120,343.16, 166,079.69 and 66,634.08

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Solution

The fourth proportional to 120,343.16, 166,079.69 and 66,634.08 is: 91,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,343.16 : 166,079.69 = 66,634.08 : x
  2. Step 2: Convert to fraction form
    120,343.16/166,079.69 = 66,634.08/x
  3. Step 3: Cross multiply
    120,343.16x = 166,079.69 × 66,634.08
  4. Step 4: Simplify right side
    120,343.16x = 11,066,567,016.66
  5. Step 5: Solve for x
    x = 11,066,567,016.66/120,343.16
  6. Step 6: Final answer
    x = 91,958.43

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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.