Home / 143,211.92-197,606.39-82,760.40

Finding the Fourth Proportional to 143,211.92, 197,606.39 and 82,760.40

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Solution

The fourth proportional to 143,211.92, 197,606.39 and 82,760.40 is: 114,194.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,211.92 : 197,606.39 = 82,760.40 : x
  2. Step 2: Convert to fraction form
    143,211.92/197,606.39 = 82,760.40/x
  3. Step 3: Cross multiply
    143,211.92x = 197,606.39 × 82,760.40
  4. Step 4: Simplify right side
    143,211.92x = 16,353,983,465.15
  5. Step 5: Solve for x
    x = 16,353,983,465.15/143,211.92
  6. Step 6: Final answer
    x = 114,194.29

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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.