Home / 120,343.19-166,074.91-66,629.16

Finding the Fourth Proportional to 120,343.19, 166,074.91 and 66,629.16

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Solution

The fourth proportional to 120,343.19, 166,074.91 and 66,629.16 is: 91,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,343.19 : 166,074.91 = 66,629.16 : x
  2. Step 2: Convert to fraction form
    120,343.19/166,074.91 = 66,629.16/x
  3. Step 3: Cross multiply
    120,343.19x = 166,074.91 × 66,629.16
  4. Step 4: Simplify right side
    120,343.19x = 11,065,431,583.80
  5. Step 5: Solve for x
    x = 11,065,431,583.80/120,343.19
  6. Step 6: Final answer
    x = 91,948.97

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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.