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Finding the Fourth Proportional to 123,884.40, 170,954.10 and 67,295.64

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Solution

The fourth proportional to 123,884.40, 170,954.10 and 67,295.64 is: 92,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,884.40 : 170,954.10 = 67,295.64 : x
  2. Step 2: Convert to fraction form
    123,884.40/170,954.10 = 67,295.64/x
  3. Step 3: Cross multiply
    123,884.40x = 170,954.10 × 67,295.64
  4. Step 4: Simplify right side
    123,884.40x = 11,504,465,570.12
  5. Step 5: Solve for x
    x = 11,504,465,570.12/123,884.40
  6. Step 6: Final answer
    x = 92,864.52

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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.