Home / 213,815.68-320,628.70-113,957.24

Finding the Fourth Proportional to 213,815.68, 320,628.70 and 113,957.24

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Solution

The fourth proportional to 213,815.68, 320,628.70 and 113,957.24 is: 170,885.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,815.68 : 320,628.70 = 113,957.24 : x
  2. Step 2: Convert to fraction form
    213,815.68/320,628.70 = 113,957.24/x
  3. Step 3: Cross multiply
    213,815.68x = 320,628.70 × 113,957.24
  4. Step 4: Simplify right side
    213,815.68x = 36,537,961,716.79
  5. Step 5: Solve for x
    x = 36,537,961,716.79/213,815.68
  6. Step 6: Final answer
    x = 170,885.32

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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.