Home / 120,458.06-166,225.12-66,739.87

Finding the Fourth Proportional to 120,458.06, 166,225.12 and 66,739.87

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Solution

The fourth proportional to 120,458.06, 166,225.12 and 66,739.87 is: 92,097.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,458.06 : 166,225.12 = 66,739.87 : x
  2. Step 2: Convert to fraction form
    120,458.06/166,225.12 = 66,739.87/x
  3. Step 3: Cross multiply
    120,458.06x = 166,225.12 × 66,739.87
  4. Step 4: Simplify right side
    120,458.06x = 11,093,842,899.53
  5. Step 5: Solve for x
    x = 11,093,842,899.53/120,458.06
  6. Step 6: Final answer
    x = 92,097.14

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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.