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Finding the Fourth Proportional to 108,996.40, 150,419.48 and 61,249.60

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Solution

The fourth proportional to 108,996.40, 150,419.48 and 61,249.60 is: 84,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,996.40 : 150,419.48 = 61,249.60 : x
  2. Step 2: Convert to fraction form
    108,996.40/150,419.48 = 61,249.60/x
  3. Step 3: Cross multiply
    108,996.40x = 150,419.48 × 61,249.60
  4. Step 4: Simplify right side
    108,996.40x = 9,213,132,982.21
  5. Step 5: Solve for x
    x = 9,213,132,982.21/108,996.40
  6. Step 6: Final answer
    x = 84,526.95

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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.