Home / 109,704.32-151,403.13-79,102.58

Finding the Fourth Proportional to 109,704.32, 151,403.13 and 79,102.58

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Solution

The fourth proportional to 109,704.32, 151,403.13 and 79,102.58 is: 109,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,704.32 : 151,403.13 = 79,102.58 : x
  2. Step 2: Convert to fraction form
    109,704.32/151,403.13 = 79,102.58/x
  3. Step 3: Cross multiply
    109,704.32x = 151,403.13 × 79,102.58
  4. Step 4: Simplify right side
    109,704.32x = 11,976,378,581.58
  5. Step 5: Solve for x
    x = 11,976,378,581.58/109,704.32
  6. Step 6: Final answer
    x = 109,169.62

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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.