Home / 117,186.62-175,778.07-28,440.86

Finding the Fourth Proportional to 117,186.62, 175,778.07 and 28,440.86

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Solution

The fourth proportional to 117,186.62, 175,778.07 and 28,440.86 is: 42,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,186.62 : 175,778.07 = 28,440.86 : x
  2. Step 2: Convert to fraction form
    117,186.62/175,778.07 = 28,440.86/x
  3. Step 3: Cross multiply
    117,186.62x = 175,778.07 × 28,440.86
  4. Step 4: Simplify right side
    117,186.62x = 4,999,279,479.94
  5. Step 5: Solve for x
    x = 4,999,279,479.94/117,186.62
  6. Step 6: Final answer
    x = 42,660.84

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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.