Home / 137,305.44-189,464.88-76,871.34

Finding the Fourth Proportional to 137,305.44, 189,464.88 and 76,871.34

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Solution

The fourth proportional to 137,305.44, 189,464.88 and 76,871.34 is: 106,073.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,305.44 : 189,464.88 = 76,871.34 : x
  2. Step 2: Convert to fraction form
    137,305.44/189,464.88 = 76,871.34/x
  3. Step 3: Cross multiply
    137,305.44x = 189,464.88 × 76,871.34
  4. Step 4: Simplify right side
    137,305.44x = 14,564,419,208.54
  5. Step 5: Solve for x
    x = 14,564,419,208.54/137,305.44
  6. Step 6: Final answer
    x = 106,073.14

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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.