Home / 137,267.56-189,394.98-80,667.88

Finding the Fourth Proportional to 137,267.56, 189,394.98 and 80,667.88

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Solution

The fourth proportional to 137,267.56, 189,394.98 and 80,667.88 is: 111,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,267.56 : 189,394.98 = 80,667.88 : x
  2. Step 2: Convert to fraction form
    137,267.56/189,394.98 = 80,667.88/x
  3. Step 3: Cross multiply
    137,267.56x = 189,394.98 × 80,667.88
  4. Step 4: Simplify right side
    137,267.56x = 15,278,091,519.24
  5. Step 5: Solve for x
    x = 15,278,091,519.24/137,267.56
  6. Step 6: Final answer
    x = 111,301.55

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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.