Home / 126,966.20-190,319.70-74,348.60

Finding the Fourth Proportional to 126,966.20, 190,319.70 and 74,348.60

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Solution

The fourth proportional to 126,966.20, 190,319.70 and 74,348.60 is: 111,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,966.20 : 190,319.70 = 74,348.60 : x
  2. Step 2: Convert to fraction form
    126,966.20/190,319.70 = 74,348.60/x
  3. Step 3: Cross multiply
    126,966.20x = 190,319.70 × 74,348.60
  4. Step 4: Simplify right side
    126,966.20x = 14,150,003,247.42
  5. Step 5: Solve for x
    x = 14,150,003,247.42/126,966.20
  6. Step 6: Final answer
    x = 111,447.01

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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.