Home / 126,103.64-188,597.76-112,161.56

Finding the Fourth Proportional to 126,103.64, 188,597.76 and 112,161.56

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Solution

The fourth proportional to 126,103.64, 188,597.76 and 112,161.56 is: 167,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,103.64 : 188,597.76 = 112,161.56 : x
  2. Step 2: Convert to fraction form
    126,103.64/188,597.76 = 112,161.56/x
  3. Step 3: Cross multiply
    126,103.64x = 188,597.76 × 112,161.56
  4. Step 4: Simplify right side
    126,103.64x = 21,153,418,974.11
  5. Step 5: Solve for x
    x = 21,153,418,974.11/126,103.64
  6. Step 6: Final answer
    x = 167,746.30

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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.