Home / 126,792.20-190,081.26-79,941.80

Finding the Fourth Proportional to 126,792.20, 190,081.26 and 79,941.80

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Solution

The fourth proportional to 126,792.20, 190,081.26 and 79,941.80 is: 119,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,792.20 : 190,081.26 = 79,941.80 : x
  2. Step 2: Convert to fraction form
    126,792.20/190,081.26 = 79,941.80/x
  3. Step 3: Cross multiply
    126,792.20x = 190,081.26 × 79,941.80
  4. Step 4: Simplify right side
    126,792.20x = 15,195,438,070.67
  5. Step 5: Solve for x
    x = 15,195,438,070.67/126,792.20
  6. Step 6: Final answer
    x = 119,845.21

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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.