Home / 145,183.43-200,318.09-84,719.57

Finding the Fourth Proportional to 145,183.43, 200,318.09 and 84,719.57

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Solution

The fourth proportional to 145,183.43, 200,318.09 and 84,719.57 is: 116,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,183.43 : 200,318.09 = 84,719.57 : x
  2. Step 2: Convert to fraction form
    145,183.43/200,318.09 = 84,719.57/x
  3. Step 3: Cross multiply
    145,183.43x = 200,318.09 × 84,719.57
  4. Step 4: Simplify right side
    145,183.43x = 16,970,861,022.83
  5. Step 5: Solve for x
    x = 16,970,861,022.83/145,183.43
  6. Step 6: Final answer
    x = 116,892.55

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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.