Home / 135,792.91-187,416.74-79,204.28

Finding the Fourth Proportional to 135,792.91, 187,416.74 and 79,204.28

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Solution

The fourth proportional to 135,792.91, 187,416.74 and 79,204.28 is: 109,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,792.91 : 187,416.74 = 79,204.28 : x
  2. Step 2: Convert to fraction form
    135,792.91/187,416.74 = 79,204.28/x
  3. Step 3: Cross multiply
    135,792.91x = 187,416.74 × 79,204.28
  4. Step 4: Simplify right side
    135,792.91x = 14,844,207,951.65
  5. Step 5: Solve for x
    x = 14,844,207,951.65/135,792.91
  6. Step 6: Final answer
    x = 109,315.04

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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.