Home / 126,379.48-174,426.06-72,660.28

Finding the Fourth Proportional to 126,379.48, 174,426.06 and 72,660.28

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Solution

The fourth proportional to 126,379.48, 174,426.06 and 72,660.28 is: 100,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,379.48 : 174,426.06 = 72,660.28 : x
  2. Step 2: Convert to fraction form
    126,379.48/174,426.06 = 72,660.28/x
  3. Step 3: Cross multiply
    126,379.48x = 174,426.06 × 72,660.28
  4. Step 4: Simplify right side
    126,379.48x = 12,673,846,358.90
  5. Step 5: Solve for x
    x = 12,673,846,358.90/126,379.48
  6. Step 6: Final answer
    x = 100,284.05

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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.