Home / 137,033.32-189,027.12-80,433.76

Finding the Fourth Proportional to 137,033.32, 189,027.12 and 80,433.76

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Solution

The fourth proportional to 137,033.32, 189,027.12 and 80,433.76 is: 110,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,033.32 : 189,027.12 = 80,433.76 : x
  2. Step 2: Convert to fraction form
    137,033.32/189,027.12 = 80,433.76/x
  3. Step 3: Cross multiply
    137,033.32x = 189,027.12 × 80,433.76
  4. Step 4: Simplify right side
    137,033.32x = 15,204,162,003.57
  5. Step 5: Solve for x
    x = 15,204,162,003.57/137,033.32
  6. Step 6: Final answer
    x = 110,952.30

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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.