Home / 111,645.96-154,111.92-73,932.36

Finding the Fourth Proportional to 111,645.96, 154,111.92 and 73,932.36

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Solution

The fourth proportional to 111,645.96, 154,111.92 and 73,932.36 is: 102,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,645.96 : 154,111.92 = 73,932.36 : x
  2. Step 2: Convert to fraction form
    111,645.96/154,111.92 = 73,932.36/x
  3. Step 3: Cross multiply
    111,645.96x = 154,111.92 × 73,932.36
  4. Step 4: Simplify right side
    111,645.96x = 11,393,857,949.73
  5. Step 5: Solve for x
    x = 11,393,857,949.73/111,645.96
  6. Step 6: Final answer
    x = 102,053.47

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1.5x scale

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.