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Finding the Fourth Proportional to 103,067.57, 155,303.44 and 84,757.73

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Solution

The fourth proportional to 103,067.57, 155,303.44 and 84,757.73 is: 127,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,067.57 : 155,303.44 = 84,757.73 : x
  2. Step 2: Convert to fraction form
    103,067.57/155,303.44 = 84,757.73/x
  3. Step 3: Cross multiply
    103,067.57x = 155,303.44 × 84,757.73
  4. Step 4: Simplify right side
    103,067.57x = 13,163,166,047.18
  5. Step 5: Solve for x
    x = 13,163,166,047.18/103,067.57
  6. Step 6: Final answer
    x = 127,713.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.