Home / 291,145.11-436,712.79-131,132.04

Finding the Fourth Proportional to 291,145.11, 436,712.79 and 131,132.04

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Solution

The fourth proportional to 291,145.11, 436,712.79 and 131,132.04 is: 196,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,145.11 : 436,712.79 = 131,132.04 : x
  2. Step 2: Convert to fraction form
    291,145.11/436,712.79 = 131,132.04/x
  3. Step 3: Cross multiply
    291,145.11x = 436,712.79 × 131,132.04
  4. Step 4: Simplify right side
    291,145.11x = 57,267,039,046.79
  5. Step 5: Solve for x
    x = 57,267,039,046.79/291,145.11
  6. Step 6: Final answer
    x = 196,695.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.