Home / 126,245.90-174,145.88-80,907.78

Finding the Fourth Proportional to 126,245.90, 174,145.88 and 80,907.78

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Solution

The fourth proportional to 126,245.90, 174,145.88 and 80,907.78 is: 111,605.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,245.90 : 174,145.88 = 80,907.78 : x
  2. Step 2: Convert to fraction form
    126,245.90/174,145.88 = 80,907.78/x
  3. Step 3: Cross multiply
    126,245.90x = 174,145.88 × 80,907.78
  4. Step 4: Simplify right side
    126,245.90x = 14,089,756,546.95
  5. Step 5: Solve for x
    x = 14,089,756,546.95/126,245.90
  6. Step 6: Final answer
    x = 111,605.66

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1.5x scale

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.