Home / 137,134.11-189,262.61-76,708.11

Finding the Fourth Proportional to 137,134.11, 189,262.61 and 76,708.11

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Solution

The fourth proportional to 137,134.11, 189,262.61 and 76,708.11 is: 105,867.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,134.11 : 189,262.61 = 76,708.11 : x
  2. Step 2: Convert to fraction form
    137,134.11/189,262.61 = 76,708.11/x
  3. Step 3: Cross multiply
    137,134.11x = 189,262.61 × 76,708.11
  4. Step 4: Simplify right side
    137,134.11x = 14,517,976,723.23
  5. Step 5: Solve for x
    x = 14,517,976,723.23/137,134.11
  6. Step 6: Final answer
    x = 105,867.00

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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.