Home / 137,451.58-189,426.32-107,188.97

Finding the Fourth Proportional to 137,451.58, 189,426.32 and 107,188.97

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Solution

The fourth proportional to 137,451.58, 189,426.32 and 107,188.97 is: 147,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,451.58 : 189,426.32 = 107,188.97 : x
  2. Step 2: Convert to fraction form
    137,451.58/189,426.32 = 107,188.97/x
  3. Step 3: Cross multiply
    137,451.58x = 189,426.32 × 107,188.97
  4. Step 4: Simplify right side
    137,451.58x = 20,304,412,417.56
  5. Step 5: Solve for x
    x = 20,304,412,417.56/137,451.58
  6. Step 6: Final answer
    x = 147,720.47

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1.5x scale

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.