Home / 197,319.75-271,929.22-142,779.61

Finding the Fourth Proportional to 197,319.75, 271,929.22 and 142,779.61

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Solution

The fourth proportional to 197,319.75, 271,929.22 and 142,779.61 is: 196,766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,319.75 : 271,929.22 = 142,779.61 : x
  2. Step 2: Convert to fraction form
    197,319.75/271,929.22 = 142,779.61/x
  3. Step 3: Cross multiply
    197,319.75x = 271,929.22 × 142,779.61
  4. Step 4: Simplify right side
    197,319.75x = 38,825,947,979.20
  5. Step 5: Solve for x
    x = 38,825,947,979.20/197,319.75
  6. Step 6: Final answer
    x = 196,766.66

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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.