Home / 325,764.40-488,515.36-136,100.48

Finding the Fourth Proportional to 325,764.40, 488,515.36 and 136,100.48

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Solution

The fourth proportional to 325,764.40, 488,515.36 and 136,100.48 is: 204,095.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,764.40 : 488,515.36 = 136,100.48 : x
  2. Step 2: Convert to fraction form
    325,764.40/488,515.36 = 136,100.48/x
  3. Step 3: Cross multiply
    325,764.40x = 488,515.36 × 136,100.48
  4. Step 4: Simplify right side
    325,764.40x = 66,487,174,983.37
  5. Step 5: Solve for x
    x = 66,487,174,983.37/325,764.40
  6. Step 6: Final answer
    x = 204,095.89

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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.