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Finding the Fourth Proportional to 108,078.84, 149,142.53 and 60,335.21

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Solution

The fourth proportional to 108,078.84, 149,142.53 and 60,335.21 is: 83,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,078.84 : 149,142.53 = 60,335.21 : x
  2. Step 2: Convert to fraction form
    108,078.84/149,142.53 = 60,335.21/x
  3. Step 3: Cross multiply
    108,078.84x = 149,142.53 × 60,335.21
  4. Step 4: Simplify right side
    108,078.84x = 8,998,546,391.18
  5. Step 5: Solve for x
    x = 8,998,546,391.18/108,078.84
  6. Step 6: Final answer
    x = 83,259.09

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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.