Home / 120,941.91-166,841.78-104,145.75

Finding the Fourth Proportional to 120,941.91, 166,841.78 and 104,145.75

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Solution

The fourth proportional to 120,941.91, 166,841.78 and 104,145.75 is: 143,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,941.91 : 166,841.78 = 104,145.75 : x
  2. Step 2: Convert to fraction form
    120,941.91/166,841.78 = 104,145.75/x
  3. Step 3: Cross multiply
    120,941.91x = 166,841.78 × 104,145.75
  4. Step 4: Simplify right side
    120,941.91x = 17,375,861,788.71
  5. Step 5: Solve for x
    x = 17,375,861,788.71/120,941.91
  6. Step 6: Final answer
    x = 143,671.14

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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.