Home / 121,722,371.40-167,994,098.12-75,327,571.56

Finding the Fourth Proportional to 121,722,371.40, 167,994,098.12 and 75,327,571.56

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Solution

The fourth proportional to 121,722,371.40, 167,994,098.12 and 75,327,571.56 is: 103,962,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,722,371.40 : 167,994,098.12 = 75,327,571.56 : x
  2. Step 2: Convert to fraction form
    121,722,371.40/167,994,098.12 = 75,327,571.56/x
  3. Step 3: Cross multiply
    121,722,371.40x = 167,994,098.12 × 75,327,571.56
  4. Step 4: Simplify right side
    121,722,371.40x = 12,654,587,447,791,962
  5. Step 5: Solve for x
    x = 12,654,587,447,791,962/121,722,371.40
  6. Step 6: Final answer
    x = 103,962,708.76

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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.