Home / 224,145.57-309,321.12-122,171.11

Finding the Fourth Proportional to 224,145.57, 309,321.12 and 122,171.11

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Solution

The fourth proportional to 224,145.57, 309,321.12 and 122,171.11 is: 168,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,145.57 : 309,321.12 = 122,171.11 : x
  2. Step 2: Convert to fraction form
    224,145.57/309,321.12 = 122,171.11/x
  3. Step 3: Cross multiply
    224,145.57x = 309,321.12 × 122,171.11
  4. Step 4: Simplify right side
    224,145.57x = 37,790,104,576.84
  5. Step 5: Solve for x
    x = 37,790,104,576.84/224,145.57
  6. Step 6: Final answer
    x = 168,596.26

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1.5x scale

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.