Home / 126,749.91-174,914.87-70,161.28

Finding the Fourth Proportional to 126,749.91, 174,914.87 and 70,161.28

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Solution

The fourth proportional to 126,749.91, 174,914.87 and 70,161.28 is: 96,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,749.91 : 174,914.87 = 70,161.28 : x
  2. Step 2: Convert to fraction form
    126,749.91/174,914.87 = 70,161.28/x
  3. Step 3: Cross multiply
    126,749.91x = 174,914.87 × 70,161.28
  4. Step 4: Simplify right side
    126,749.91x = 12,272,251,170.23
  5. Step 5: Solve for x
    x = 12,272,251,170.23/126,749.91
  6. Step 6: Final answer
    x = 96,822.57

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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.