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Finding the Fourth Proportional to 70,900.33, 106,342.26 and 18,305.68

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Solution

The fourth proportional to 70,900.33, 106,342.26 and 18,305.68 is: 27,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,900.33 : 106,342.26 = 18,305.68 : x
  2. Step 2: Convert to fraction form
    70,900.33/106,342.26 = 18,305.68/x
  3. Step 3: Cross multiply
    70,900.33x = 106,342.26 × 18,305.68
  4. Step 4: Simplify right side
    70,900.33x = 1,946,667,382.04
  5. Step 5: Solve for x
    x = 1,946,667,382.04/70,900.33
  6. Step 6: Final answer
    x = 27,456.39

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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.