Home / 126,756.64-190,165.20-43,651.36

Finding the Fourth Proportional to 126,756.64, 190,165.20 and 43,651.36

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Solution

The fourth proportional to 126,756.64, 190,165.20 and 43,651.36 is: 65,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,756.64 : 190,165.20 = 43,651.36 : x
  2. Step 2: Convert to fraction form
    126,756.64/190,165.20 = 43,651.36/x
  3. Step 3: Cross multiply
    126,756.64x = 190,165.20 × 43,651.36
  4. Step 4: Simplify right side
    126,756.64x = 8,300,969,604.67
  5. Step 5: Solve for x
    x = 8,300,969,604.67/126,756.64
  6. Step 6: Final answer
    x = 65,487.45

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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.