Home / 216,631.83-324,845.18-126,700.56

Finding the Fourth Proportional to 216,631.83, 324,845.18 and 126,700.56

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Solution

The fourth proportional to 216,631.83, 324,845.18 and 126,700.56 is: 189,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,631.83 : 324,845.18 = 126,700.56 : x
  2. Step 2: Convert to fraction form
    216,631.83/324,845.18 = 126,700.56/x
  3. Step 3: Cross multiply
    216,631.83x = 324,845.18 × 126,700.56
  4. Step 4: Simplify right side
    216,631.83x = 41,158,066,219.30
  5. Step 5: Solve for x
    x = 41,158,066,219.30/216,631.83
  6. Step 6: Final answer
    x = 189,990.85

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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.