Home / 126,943.92-174,980.52-100,043.28

Finding the Fourth Proportional to 126,943.92, 174,980.52 and 100,043.28

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Solution

The fourth proportional to 126,943.92, 174,980.52 and 100,043.28 is: 137,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,943.92 : 174,980.52 = 100,043.28 : x
  2. Step 2: Convert to fraction form
    126,943.92/174,980.52 = 100,043.28/x
  3. Step 3: Cross multiply
    126,943.92x = 174,980.52 × 100,043.28
  4. Step 4: Simplify right side
    126,943.92x = 17,505,625,156.91
  5. Step 5: Solve for x
    x = 17,505,625,156.91/126,943.92
  6. Step 6: Final answer
    x = 137,900.46

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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.