Home / 137,163.30-189,276.44-76,723.59

Finding the Fourth Proportional to 137,163.30, 189,276.44 and 76,723.59

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Solution

The fourth proportional to 137,163.30, 189,276.44 and 76,723.59 is: 105,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,163.30 : 189,276.44 = 76,723.59 : x
  2. Step 2: Convert to fraction form
    137,163.30/189,276.44 = 76,723.59/x
  3. Step 3: Cross multiply
    137,163.30x = 189,276.44 × 76,723.59
  4. Step 4: Simplify right side
    137,163.30x = 14,521,967,979.22
  5. Step 5: Solve for x
    x = 14,521,967,979.22/137,163.30
  6. Step 6: Final answer
    x = 105,873.57

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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.