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Finding the Fourth Proportional to 108,993.17, 163,489.53 and 30,107.16

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Solution

The fourth proportional to 108,993.17, 163,489.53 and 30,107.16 is: 45,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,993.17 : 163,489.53 = 30,107.16 : x
  2. Step 2: Convert to fraction form
    108,993.17/163,489.53 = 30,107.16/x
  3. Step 3: Cross multiply
    108,993.17x = 163,489.53 × 30,107.16
  4. Step 4: Simplify right side
    108,993.17x = 4,922,205,438.03
  5. Step 5: Solve for x
    x = 4,922,205,438.03/108,993.17
  6. Step 6: Final answer
    x = 45,160.68

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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.