Home / 137,474.41-189,705.71-80,874.85

Finding the Fourth Proportional to 137,474.41, 189,705.71 and 80,874.85

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Solution

The fourth proportional to 137,474.41, 189,705.71 and 80,874.85 is: 111,602.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,474.41 : 189,705.71 = 80,874.85 : x
  2. Step 2: Convert to fraction form
    137,474.41/189,705.71 = 80,874.85/x
  3. Step 3: Cross multiply
    137,474.41x = 189,705.71 × 80,874.85
  4. Step 4: Simplify right side
    137,474.41x = 15,342,420,436.02
  5. Step 5: Solve for x
    x = 15,342,420,436.02/137,474.41
  6. Step 6: Final answer
    x = 111,602.01

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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.