Home / 170,819.78-235,713.39-99,185.81

Finding the Fourth Proportional to 170,819.78, 235,713.39 and 99,185.81

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Solution

The fourth proportional to 170,819.78, 235,713.39 and 99,185.81 is: 136,866.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,819.78 : 235,713.39 = 99,185.81 : x
  2. Step 2: Convert to fraction form
    170,819.78/235,713.39 = 99,185.81/x
  3. Step 3: Cross multiply
    170,819.78x = 235,713.39 × 99,185.81
  4. Step 4: Simplify right side
    170,819.78x = 23,379,422,336.43
  5. Step 5: Solve for x
    x = 23,379,422,336.43/170,819.78
  6. Step 6: Final answer
    x = 136,866.02

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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.