Home / 107,415.75-161,126.82-51,261.80

Finding the Fourth Proportional to 107,415.75, 161,126.82 and 51,261.80

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Solution

The fourth proportional to 107,415.75, 161,126.82 and 51,261.80 is: 76,894.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,415.75 : 161,126.82 = 51,261.80 : x
  2. Step 2: Convert to fraction form
    107,415.75/161,126.82 = 51,261.80/x
  3. Step 3: Cross multiply
    107,415.75x = 161,126.82 × 51,261.80
  4. Step 4: Simplify right side
    107,415.75x = 8,259,650,015.84
  5. Step 5: Solve for x
    x = 8,259,650,015.84/107,415.75
  6. Step 6: Final answer
    x = 76,894.21

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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.