Home / 121,982.06-168,336.09-68,272.04

Finding the Fourth Proportional to 121,982.06, 168,336.09 and 68,272.04

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Solution

The fourth proportional to 121,982.06, 168,336.09 and 68,272.04 is: 94,215.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,982.06 : 168,336.09 = 68,272.04 : x
  2. Step 2: Convert to fraction form
    121,982.06/168,336.09 = 68,272.04/x
  3. Step 3: Cross multiply
    121,982.06x = 168,336.09 × 68,272.04
  4. Step 4: Simplify right side
    121,982.06x = 11,492,648,690.76
  5. Step 5: Solve for x
    x = 11,492,648,690.76/121,982.06
  6. Step 6: Final answer
    x = 94,215.89

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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.