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Finding the Fourth Proportional to 108,107.60, 161,772.60 and 73,115.60

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Solution

The fourth proportional to 108,107.60, 161,772.60 and 73,115.60 is: 109,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,107.60 : 161,772.60 = 73,115.60 : x
  2. Step 2: Convert to fraction form
    108,107.60/161,772.60 = 73,115.60/x
  3. Step 3: Cross multiply
    108,107.60x = 161,772.60 × 73,115.60
  4. Step 4: Simplify right side
    108,107.60x = 11,828,100,712.56
  5. Step 5: Solve for x
    x = 11,828,100,712.56/108,107.60
  6. Step 6: Final answer
    x = 109,410.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.