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Finding the Fourth Proportional to 108,860.60, 150,217.26 and 61,103

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Solution

The fourth proportional to 108,860.60, 150,217.26 and 61,103 is: 84,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,860.60 : 150,217.26 = 61,103 : x
  2. Step 2: Convert to fraction form
    108,860.60/150,217.26 = 61,103/x
  3. Step 3: Cross multiply
    108,860.60x = 150,217.26 × 61,103
  4. Step 4: Simplify right side
    108,860.60x = 9,178,725,237.78
  5. Step 5: Solve for x
    x = 9,178,725,237.78/108,860.60
  6. Step 6: Final answer
    x = 84,316.32

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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.