Home / 131,823.25-197,764.23-72,628.45

Finding the Fourth Proportional to 131,823.25, 197,764.23 and 72,628.45

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Solution

The fourth proportional to 131,823.25, 197,764.23 and 72,628.45 is: 108,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.25 : 197,764.23 = 72,628.45 : x
  2. Step 2: Convert to fraction form
    131,823.25/197,764.23 = 72,628.45/x
  3. Step 3: Cross multiply
    131,823.25x = 197,764.23 × 72,628.45
  4. Step 4: Simplify right side
    131,823.25x = 14,363,309,268.29
  5. Step 5: Solve for x
    x = 14,363,309,268.29/131,823.25
  6. Step 6: Final answer
    x = 108,958.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.