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Finding the Fourth Proportional to 108,893.12, 150,297 and 71,145.68

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Solution

The fourth proportional to 108,893.12, 150,297 and 71,145.68 is: 98,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,893.12 : 150,297 = 71,145.68 : x
  2. Step 2: Convert to fraction form
    108,893.12/150,297 = 71,145.68/x
  3. Step 3: Cross multiply
    108,893.12x = 150,297 × 71,145.68
  4. Step 4: Simplify right side
    108,893.12x = 10,692,982,266.96
  5. Step 5: Solve for x
    x = 10,692,982,266.96/108,893.12
  6. Step 6: Final answer
    x = 98,197.04

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1.5x scale

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.