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Finding the Fourth Proportional to 121,615.79, 167,828.15 and 67,901.63

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Solution

The fourth proportional to 121,615.79, 167,828.15 and 67,901.63 is: 93,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,615.79 : 167,828.15 = 67,901.63 : x
  2. Step 2: Convert to fraction form
    121,615.79/167,828.15 = 67,901.63/x
  3. Step 3: Cross multiply
    121,615.79x = 167,828.15 × 67,901.63
  4. Step 4: Simplify right side
    121,615.79x = 11,395,804,105.74
  5. Step 5: Solve for x
    x = 11,395,804,105.74/121,615.79
  6. Step 6: Final answer
    x = 93,703.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.