Home / 213,426.46-320,178.57-73,153.90

Finding the Fourth Proportional to 213,426.46, 320,178.57 and 73,153.90

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Solution

The fourth proportional to 213,426.46, 320,178.57 and 73,153.90 is: 109,744.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,426.46 : 320,178.57 = 73,153.90 : x
  2. Step 2: Convert to fraction form
    213,426.46/320,178.57 = 73,153.90/x
  3. Step 3: Cross multiply
    213,426.46x = 320,178.57 × 73,153.90
  4. Step 4: Simplify right side
    213,426.46x = 23,422,311,091.92
  5. Step 5: Solve for x
    x = 23,422,311,091.92/213,426.46
  6. Step 6: Final answer
    x = 109,744.18

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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.