Home / 121,163.06-167,287.32-75,859.35

Finding the Fourth Proportional to 121,163.06, 167,287.32 and 75,859.35

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Solution

The fourth proportional to 121,163.06, 167,287.32 and 75,859.35 is: 104,737.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,163.06 : 167,287.32 = 75,859.35 : x
  2. Step 2: Convert to fraction form
    121,163.06/167,287.32 = 75,859.35/x
  3. Step 3: Cross multiply
    121,163.06x = 167,287.32 × 75,859.35
  4. Step 4: Simplify right side
    121,163.06x = 12,690,307,358.44
  5. Step 5: Solve for x
    x = 12,690,307,358.44/121,163.06
  6. Step 6: Final answer
    x = 104,737.43

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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.