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Finding the Fourth Proportional to 70,167.97, 105,181.02 and 30,213.01

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Solution

The fourth proportional to 70,167.97, 105,181.02 and 30,213.01 is: 45,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167.97 : 105,181.02 = 30,213.01 : x
  2. Step 2: Convert to fraction form
    70,167.97/105,181.02 = 30,213.01/x
  3. Step 3: Cross multiply
    70,167.97x = 105,181.02 × 30,213.01
  4. Step 4: Simplify right side
    70,167.97x = 3,177,835,209.07
  5. Step 5: Solve for x
    x = 3,177,835,209.07/70,167.97
  6. Step 6: Final answer
    x = 45,288.97

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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.