Home / 121,678.66-167,914.74-67,964.46

Finding the Fourth Proportional to 121,678.66, 167,914.74 and 67,964.46

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Solution

The fourth proportional to 121,678.66, 167,914.74 and 67,964.46 is: 93,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,678.66 : 167,914.74 = 67,964.46 : x
  2. Step 2: Convert to fraction form
    121,678.66/167,914.74 = 67,964.46/x
  3. Step 3: Cross multiply
    121,678.66x = 167,914.74 × 67,964.46
  4. Step 4: Simplify right side
    121,678.66x = 11,412,234,630.14
  5. Step 5: Solve for x
    x = 11,412,234,630.14/121,678.66
  6. Step 6: Final answer
    x = 93,789.94

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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.