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Finding the Fourth Proportional to 108,327, 149,490 and 60,579.90

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Solution

The fourth proportional to 108,327, 149,490 and 60,579.90 is: 83,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,327 : 149,490 = 60,579.90 : x
  2. Step 2: Convert to fraction form
    108,327/149,490 = 60,579.90/x
  3. Step 3: Cross multiply
    108,327x = 149,490 × 60,579.90
  4. Step 4: Simplify right side
    108,327x = 9,056,089,251
  5. Step 5: Solve for x
    x = 9,056,089,251/108,327
  6. Step 6: Final answer
    x = 83,599.56

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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.