Home / 107,489.33-161,237.64-28,603.64

Finding the Fourth Proportional to 107,489.33, 161,237.64 and 28,603.64

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Solution

The fourth proportional to 107,489.33, 161,237.64 and 28,603.64 is: 42,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,489.33 : 161,237.64 = 28,603.64 : x
  2. Step 2: Convert to fraction form
    107,489.33/161,237.64 = 28,603.64/x
  3. Step 3: Cross multiply
    107,489.33x = 161,237.64 × 28,603.64
  4. Step 4: Simplify right side
    107,489.33x = 4,611,982,602.82
  5. Step 5: Solve for x
    x = 4,611,982,602.82/107,489.33
  6. Step 6: Final answer
    x = 42,906.42

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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.