Home / 121,678.03-167,913.89-67,963.83

Finding the Fourth Proportional to 121,678.03, 167,913.89 and 67,963.83

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Solution

The fourth proportional to 121,678.03, 167,913.89 and 67,963.83 is: 93,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,678.03 : 167,913.89 = 67,963.83 : x
  2. Step 2: Convert to fraction form
    121,678.03/167,913.89 = 67,963.83/x
  3. Step 3: Cross multiply
    121,678.03x = 167,913.89 × 67,963.83
  4. Step 4: Simplify right side
    121,678.03x = 11,412,071,074.60
  5. Step 5: Solve for x
    x = 11,412,071,074.60/121,678.03
  6. Step 6: Final answer
    x = 93,789.08

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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.