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Finding the Fourth Proportional to 108,858.60, 150,214.50 and 61,101

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Solution

The fourth proportional to 108,858.60, 150,214.50 and 61,101 is: 84,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,858.60 : 150,214.50 = 61,101 : x
  2. Step 2: Convert to fraction form
    108,858.60/150,214.50 = 61,101/x
  3. Step 3: Cross multiply
    108,858.60x = 150,214.50 × 61,101
  4. Step 4: Simplify right side
    108,858.60x = 9,178,256,164.50
  5. Step 5: Solve for x
    x = 9,178,256,164.50/108,858.60
  6. Step 6: Final answer
    x = 84,313.56

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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.