Home / 167,518.14-251,331.75-78,780.48

Finding the Fourth Proportional to 167,518.14, 251,331.75 and 78,780.48

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Solution

The fourth proportional to 167,518.14, 251,331.75 and 78,780.48 is: 118,196.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,518.14 : 251,331.75 = 78,780.48 : x
  2. Step 2: Convert to fraction form
    167,518.14/251,331.75 = 78,780.48/x
  3. Step 3: Cross multiply
    167,518.14x = 251,331.75 × 78,780.48
  4. Step 4: Simplify right side
    167,518.14x = 19,800,035,904.24
  5. Step 5: Solve for x
    x = 19,800,035,904.24/167,518.14
  6. Step 6: Final answer
    x = 118,196.37

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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.