Home / 213,766.87-294,926.65-123,121.02

Finding the Fourth Proportional to 213,766.87, 294,926.65 and 123,121.02

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Solution

The fourth proportional to 213,766.87, 294,926.65 and 123,121.02 is: 169,865.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,766.87 : 294,926.65 = 123,121.02 : x
  2. Step 2: Convert to fraction form
    213,766.87/294,926.65 = 123,121.02/x
  3. Step 3: Cross multiply
    213,766.87x = 294,926.65 × 123,121.02
  4. Step 4: Simplify right side
    213,766.87x = 36,311,668,559.41
  5. Step 5: Solve for x
    x = 36,311,668,559.41/213,766.87
  6. Step 6: Final answer
    x = 169,865.75

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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.