Home / 121,709.04-167,958.47-67,994.07

Finding the Fourth Proportional to 121,709.04, 167,958.47 and 67,994.07

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Solution

The fourth proportional to 121,709.04, 167,958.47 and 67,994.07 is: 93,831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,709.04 : 167,958.47 = 67,994.07 : x
  2. Step 2: Convert to fraction form
    121,709.04/167,958.47 = 67,994.07/x
  3. Step 3: Cross multiply
    121,709.04x = 167,958.47 × 67,994.07
  4. Step 4: Simplify right side
    121,709.04x = 11,420,179,626.30
  5. Step 5: Solve for x
    x = 11,420,179,626.30/121,709.04
  6. Step 6: Final answer
    x = 93,831.81

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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.