Home / 118,837.24-164,069.96-76,469.40

Finding the Fourth Proportional to 118,837.24, 164,069.96 and 76,469.40

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Solution

The fourth proportional to 118,837.24, 164,069.96 and 76,469.40 is: 105,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,837.24 : 164,069.96 = 76,469.40 : x
  2. Step 2: Convert to fraction form
    118,837.24/164,069.96 = 76,469.40/x
  3. Step 3: Cross multiply
    118,837.24x = 164,069.96 × 76,469.40
  4. Step 4: Simplify right side
    118,837.24x = 12,546,331,399.22
  5. Step 5: Solve for x
    x = 12,546,331,399.22/118,837.24
  6. Step 6: Final answer
    x = 105,575.76

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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.