Home / 126,837.20-190,255.80-74,219.60

Finding the Fourth Proportional to 126,837.20, 190,255.80 and 74,219.60

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Solution

The fourth proportional to 126,837.20, 190,255.80 and 74,219.60 is: 111,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,837.20 : 190,255.80 = 74,219.60 : x
  2. Step 2: Convert to fraction form
    126,837.20/190,255.80 = 74,219.60/x
  3. Step 3: Cross multiply
    126,837.20x = 190,255.80 × 74,219.60
  4. Step 4: Simplify right side
    126,837.20x = 14,120,709,373.68
  5. Step 5: Solve for x
    x = 14,120,709,373.68/126,837.20
  6. Step 6: Final answer
    x = 111,329.40

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1.5x scale

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.