Home / 137,185.28-189,316.54-76,755.92

Finding the Fourth Proportional to 137,185.28, 189,316.54 and 76,755.92

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Solution

The fourth proportional to 137,185.28, 189,316.54 and 76,755.92 is: 105,923.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,185.28 : 189,316.54 = 76,755.92 : x
  2. Step 2: Convert to fraction form
    137,185.28/189,316.54 = 76,755.92/x
  3. Step 3: Cross multiply
    137,185.28x = 189,316.54 × 76,755.92
  4. Step 4: Simplify right side
    137,185.28x = 14,531,165,198.92
  5. Step 5: Solve for x
    x = 14,531,165,198.92/137,185.28
  6. Step 6: Final answer
    x = 105,923.65

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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.