Home / 122,308.56-168,833.88-82,007.64

Finding the Fourth Proportional to 122,308.56, 168,833.88 and 82,007.64

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Solution

The fourth proportional to 122,308.56, 168,833.88 and 82,007.64 is: 113,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,308.56 : 168,833.88 = 82,007.64 : x
  2. Step 2: Convert to fraction form
    122,308.56/168,833.88 = 82,007.64/x
  3. Step 3: Cross multiply
    122,308.56x = 168,833.88 × 82,007.64
  4. Step 4: Simplify right side
    122,308.56x = 13,845,668,050.84
  5. Step 5: Solve for x
    x = 13,845,668,050.84/122,308.56
  6. Step 6: Final answer
    x = 113,202.77

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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.