Home / 122,958.16-168,576.25-120,716.48

Finding the Fourth Proportional to 122,958.16, 168,576.25 and 120,716.48

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Solution

The fourth proportional to 122,958.16, 168,576.25 and 120,716.48 is: 165,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,958.16 : 168,576.25 = 120,716.48 : x
  2. Step 2: Convert to fraction form
    122,958.16/168,576.25 = 120,716.48/x
  3. Step 3: Cross multiply
    122,958.16x = 168,576.25 × 120,716.48
  4. Step 4: Simplify right side
    122,958.16x = 20,349,931,511.60
  5. Step 5: Solve for x
    x = 20,349,931,511.60/122,958.16
  6. Step 6: Final answer
    x = 165,502.90

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.