Home / 121,554.57-167,753.73-67,850.09

Finding the Fourth Proportional to 121,554.57, 167,753.73 and 67,850.09

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Solution

The fourth proportional to 121,554.57, 167,753.73 and 67,850.09 is: 93,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,554.57 : 167,753.73 = 67,850.09 : x
  2. Step 2: Convert to fraction form
    121,554.57/167,753.73 = 67,850.09/x
  3. Step 3: Cross multiply
    121,554.57x = 167,753.73 × 67,850.09
  4. Step 4: Simplify right side
    121,554.57x = 11,382,105,678.34
  5. Step 5: Solve for x
    x = 11,382,105,678.34/121,554.57
  6. Step 6: Final answer
    x = 93,637.83

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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.