Home / 121,747.72-168,008.73-68,033.18

Finding the Fourth Proportional to 121,747.72, 168,008.73 and 68,033.18

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Solution

The fourth proportional to 121,747.72, 168,008.73 and 68,033.18 is: 93,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,747.72 : 168,008.73 = 68,033.18 : x
  2. Step 2: Convert to fraction form
    121,747.72/168,008.73 = 68,033.18/x
  3. Step 3: Cross multiply
    121,747.72x = 168,008.73 × 68,033.18
  4. Step 4: Simplify right side
    121,747.72x = 11,430,168,169.66
  5. Step 5: Solve for x
    x = 11,430,168,169.66/121,747.72
  6. Step 6: Final answer
    x = 93,884.04

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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.