Home / 126,733.50-174,872.64-73,008

Finding the Fourth Proportional to 126,733.50, 174,872.64 and 73,008

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Solution

The fourth proportional to 126,733.50, 174,872.64 and 73,008 is: 100,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,733.50 : 174,872.64 = 73,008 : x
  2. Step 2: Convert to fraction form
    126,733.50/174,872.64 = 73,008/x
  3. Step 3: Cross multiply
    126,733.50x = 174,872.64 × 73,008
  4. Step 4: Simplify right side
    126,733.50x = 12,767,101,701.12
  5. Step 5: Solve for x
    x = 12,767,101,701.12/126,733.50
  6. Step 6: Final answer
    x = 100,739.75

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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.