Home / 137,441.16-189,635.94-80,045.64

Finding the Fourth Proportional to 137,441.16, 189,635.94 and 80,045.64

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Solution

The fourth proportional to 137,441.16, 189,635.94 and 80,045.64 is: 110,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,441.16 : 189,635.94 = 80,045.64 : x
  2. Step 2: Convert to fraction form
    137,441.16/189,635.94 = 80,045.64/x
  3. Step 3: Cross multiply
    137,441.16x = 189,635.94 × 80,045.64
  4. Step 4: Simplify right side
    137,441.16x = 15,179,530,184.30
  5. Step 5: Solve for x
    x = 15,179,530,184.30/137,441.16
  6. Step 6: Final answer
    x = 110,443.85

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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.