Home / 168,219.36-231,850.08-122,822.64

Finding the Fourth Proportional to 168,219.36, 231,850.08 and 122,822.64

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Solution

The fourth proportional to 168,219.36, 231,850.08 and 122,822.64 is: 169,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,219.36 : 231,850.08 = 122,822.64 : x
  2. Step 2: Convert to fraction form
    168,219.36/231,850.08 = 122,822.64/x
  3. Step 3: Cross multiply
    168,219.36x = 231,850.08 × 122,822.64
  4. Step 4: Simplify right side
    168,219.36x = 28,476,438,909.81
  5. Step 5: Solve for x
    x = 28,476,438,909.81/168,219.36
  6. Step 6: Final answer
    x = 169,281.58

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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.