Home / 120,942.16-166,842.12-104,146

Finding the Fourth Proportional to 120,942.16, 166,842.12 and 104,146

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Solution

The fourth proportional to 120,942.16, 166,842.12 and 104,146 is: 143,671.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,942.16 : 166,842.12 = 104,146 : x
  2. Step 2: Convert to fraction form
    120,942.16/166,842.12 = 104,146/x
  3. Step 3: Cross multiply
    120,942.16x = 166,842.12 × 104,146
  4. Step 4: Simplify right side
    120,942.16x = 17,375,939,429.52
  5. Step 5: Solve for x
    x = 17,375,939,429.52/120,942.16
  6. Step 6: Final answer
    x = 143,671.48

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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.