Home / 137,512.97-189,764.49-76,258.81

Finding the Fourth Proportional to 137,512.97, 189,764.49 and 76,258.81

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Solution

The fourth proportional to 137,512.97, 189,764.49 and 76,258.81 is: 105,235.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,512.97 : 189,764.49 = 76,258.81 : x
  2. Step 2: Convert to fraction form
    137,512.97/189,764.49 = 76,258.81/x
  3. Step 3: Cross multiply
    137,512.97x = 189,764.49 × 76,258.81
  4. Step 4: Simplify right side
    137,512.97x = 14,471,214,187.66
  5. Step 5: Solve for x
    x = 14,471,214,187.66/137,512.97
  6. Step 6: Final answer
    x = 105,235.27

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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.