Home / 137,091.33-189,184.73-76,661.28

Finding the Fourth Proportional to 137,091.33, 189,184.73 and 76,661.28

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Solution

The fourth proportional to 137,091.33, 189,184.73 and 76,661.28 is: 105,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,091.33 : 189,184.73 = 76,661.28 : x
  2. Step 2: Convert to fraction form
    137,091.33/189,184.73 = 76,661.28/x
  3. Step 3: Cross multiply
    137,091.33x = 189,184.73 × 76,661.28
  4. Step 4: Simplify right side
    137,091.33x = 14,503,143,558.25
  5. Step 5: Solve for x
    x = 14,503,143,558.25/137,091.33
  6. Step 6: Final answer
    x = 105,791.84

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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.