Home / 126,962.20-190,313.70-74,344.60

Finding the Fourth Proportional to 126,962.20, 190,313.70 and 74,344.60

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Solution

The fourth proportional to 126,962.20, 190,313.70 and 74,344.60 is: 111,441.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,962.20 : 190,313.70 = 74,344.60 : x
  2. Step 2: Convert to fraction form
    126,962.20/190,313.70 = 74,344.60/x
  3. Step 3: Cross multiply
    126,962.20x = 190,313.70 × 74,344.60
  4. Step 4: Simplify right side
    126,962.20x = 14,148,795,901.02
  5. Step 5: Solve for x
    x = 14,148,795,901.02/126,962.20
  6. Step 6: Final answer
    x = 111,441.01

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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.