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Finding the Fourth Proportional to 128,573.44, 192,854.40 and 35,078.88

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Solution

The fourth proportional to 128,573.44, 192,854.40 and 35,078.88 is: 52,616.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,573.44 : 192,854.40 = 35,078.88 : x
  2. Step 2: Convert to fraction form
    128,573.44/192,854.40 = 35,078.88/x
  3. Step 3: Cross multiply
    128,573.44x = 192,854.40 × 35,078.88
  4. Step 4: Simplify right side
    128,573.44x = 6,765,116,355.07
  5. Step 5: Solve for x
    x = 6,765,116,355.07/128,573.44
  6. Step 6: Final answer
    x = 52,616.75

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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.