Home / 145,033.44-200,149.68-81,372.96

Finding the Fourth Proportional to 145,033.44, 200,149.68 and 81,372.96

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Solution

The fourth proportional to 145,033.44, 200,149.68 and 81,372.96 is: 112,296.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,033.44 : 200,149.68 = 81,372.96 : x
  2. Step 2: Convert to fraction form
    145,033.44/200,149.68 = 81,372.96/x
  3. Step 3: Cross multiply
    145,033.44x = 200,149.68 × 81,372.96
  4. Step 4: Simplify right side
    145,033.44x = 16,286,771,904.65
  5. Step 5: Solve for x
    x = 16,286,771,904.65/145,033.44
  6. Step 6: Final answer
    x = 112,296.67

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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.