Home / 107,712.91-161,569.37-28,825.09

Finding the Fourth Proportional to 107,712.91, 161,569.37 and 28,825.09

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Solution

The fourth proportional to 107,712.91, 161,569.37 and 28,825.09 is: 43,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,712.91 : 161,569.37 = 28,825.09 : x
  2. Step 2: Convert to fraction form
    107,712.91/161,569.37 = 28,825.09/x
  3. Step 3: Cross multiply
    107,712.91x = 161,569.37 × 28,825.09
  4. Step 4: Simplify right side
    107,712.91x = 4,657,251,713.51
  5. Step 5: Solve for x
    x = 4,657,251,713.51/107,712.91
  6. Step 6: Final answer
    x = 43,237.64

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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.