Home / 121,708.08-167,963.64-67,994.28

Finding the Fourth Proportional to 121,708.08, 167,963.64 and 67,994.28

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Solution

The fourth proportional to 121,708.08, 167,963.64 and 67,994.28 is: 93,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,708.08 : 167,963.64 = 67,994.28 : x
  2. Step 2: Convert to fraction form
    121,708.08/167,963.64 = 67,994.28/x
  3. Step 3: Cross multiply
    121,708.08x = 167,963.64 × 67,994.28
  4. Step 4: Simplify right side
    121,708.08x = 11,420,566,767.98
  5. Step 5: Solve for x
    x = 11,420,566,767.98/121,708.08
  6. Step 6: Final answer
    x = 93,835.73

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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.