Home / 98,738.72-136,258.78-53,416.52

Finding the Fourth Proportional to 98,738.72, 136,258.78 and 53,416.52

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Solution

The fourth proportional to 98,738.72, 136,258.78 and 53,416.52 is: 73,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,738.72 : 136,258.78 = 53,416.52 : x
  2. Step 2: Convert to fraction form
    98,738.72/136,258.78 = 53,416.52/x
  3. Step 3: Cross multiply
    98,738.72x = 136,258.78 × 53,416.52
  4. Step 4: Simplify right side
    98,738.72x = 7,278,469,847.05
  5. Step 5: Solve for x
    x = 7,278,469,847.05/98,738.72
  6. Step 6: Final answer
    x = 73,714.44

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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.