Home / 121,699.14-167,933.70-67,976.70

Finding the Fourth Proportional to 121,699.14, 167,933.70 and 67,976.70

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Solution

The fourth proportional to 121,699.14, 167,933.70 and 67,976.70 is: 93,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,699.14 : 167,933.70 = 67,976.70 : x
  2. Step 2: Convert to fraction form
    121,699.14/167,933.70 = 67,976.70/x
  3. Step 3: Cross multiply
    121,699.14x = 167,933.70 × 67,976.70
  4. Step 4: Simplify right side
    121,699.14x = 11,415,578,744.79
  5. Step 5: Solve for x
    x = 11,415,578,744.79/121,699.14
  6. Step 6: Final answer
    x = 93,801.64

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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.