Home / 137,025.43-189,129.38-109,694.77

Finding the Fourth Proportional to 137,025.43, 189,129.38 and 109,694.77

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Solution

The fourth proportional to 137,025.43, 189,129.38 and 109,694.77 is: 151,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,025.43 : 189,129.38 = 109,694.77 : x
  2. Step 2: Convert to fraction form
    137,025.43/189,129.38 = 109,694.77/x
  3. Step 3: Cross multiply
    137,025.43x = 189,129.38 × 109,694.77
  4. Step 4: Simplify right side
    137,025.43x = 20,746,503,839.34
  5. Step 5: Solve for x
    x = 20,746,503,839.34/137,025.43
  6. Step 6: Final answer
    x = 151,406.23

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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.