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Finding the Fourth Proportional to 121,740.71, 167,999.00 and 68,026.10

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Solution

The fourth proportional to 121,740.71, 167,999.00 and 68,026.10 is: 93,874.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,740.71 : 167,999.00 = 68,026.10 : x
  2. Step 2: Convert to fraction form
    121,740.71/167,999.00 = 68,026.10/x
  3. Step 3: Cross multiply
    121,740.71x = 167,999.00 × 68,026.10
  4. Step 4: Simplify right side
    121,740.71x = 11,428,315,593.77
  5. Step 5: Solve for x
    x = 11,428,315,593.77/121,740.71
  6. Step 6: Final answer
    x = 93,874.24

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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.