Home / 167,564.18-251,428.26-78,826.64

Finding the Fourth Proportional to 167,564.18, 251,428.26 and 78,826.64

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Solution

The fourth proportional to 167,564.18, 251,428.26 and 78,826.64 is: 118,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,564.18 : 251,428.26 = 78,826.64 : x
  2. Step 2: Convert to fraction form
    167,564.18/251,428.26 = 78,826.64/x
  3. Step 3: Cross multiply
    167,564.18x = 251,428.26 × 78,826.64
  4. Step 4: Simplify right side
    167,564.18x = 19,819,244,936.85
  5. Step 5: Solve for x
    x = 19,819,244,936.85/167,564.18
  6. Step 6: Final answer
    x = 118,278.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.