Home / 219,424.74-329,005.77-91,186.39

Finding the Fourth Proportional to 219,424.74, 329,005.77 and 91,186.39

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Solution

The fourth proportional to 219,424.74, 329,005.77 and 91,186.39 is: 136,725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,424.74 : 329,005.77 = 91,186.39 : x
  2. Step 2: Convert to fraction form
    219,424.74/329,005.77 = 91,186.39/x
  3. Step 3: Cross multiply
    219,424.74x = 329,005.77 × 91,186.39
  4. Step 4: Simplify right side
    219,424.74x = 30,000,847,546.49
  5. Step 5: Solve for x
    x = 30,000,847,546.49/219,424.74
  6. Step 6: Final answer
    x = 136,725.00

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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.