Home / 143,441.20-197,935-82,999.81

Finding the Fourth Proportional to 143,441.20, 197,935 and 82,999.81

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Solution

The fourth proportional to 143,441.20, 197,935 and 82,999.81 is: 114,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,441.20 : 197,935 = 82,999.81 : x
  2. Step 2: Convert to fraction form
    143,441.20/197,935 = 82,999.81/x
  3. Step 3: Cross multiply
    143,441.20x = 197,935 × 82,999.81
  4. Step 4: Simplify right side
    143,441.20x = 16,428,567,392.35
  5. Step 5: Solve for x
    x = 16,428,567,392.35/143,441.20
  6. Step 6: Final answer
    x = 114,531.72

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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.