Home / 142,813.30-197,074.75-82,380.33

Finding the Fourth Proportional to 142,813.30, 197,074.75 and 82,380.33

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Solution

The fourth proportional to 142,813.30, 197,074.75 and 82,380.33 is: 113,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,813.30 : 197,074.75 = 82,380.33 : x
  2. Step 2: Convert to fraction form
    142,813.30/197,074.75 = 82,380.33/x
  3. Step 3: Cross multiply
    142,813.30x = 197,074.75 × 82,380.33
  4. Step 4: Simplify right side
    142,813.30x = 16,235,082,939.67
  5. Step 5: Solve for x
    x = 16,235,082,939.67/142,813.30
  6. Step 6: Final answer
    x = 113,680.47

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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.