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Finding the Fourth Proportional to 70,735.84, 106,103.82 and 18,145.33

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Solution

The fourth proportional to 70,735.84, 106,103.82 and 18,145.33 is: 27,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,735.84 : 106,103.82 = 18,145.33 : x
  2. Step 2: Convert to fraction form
    70,735.84/106,103.82 = 18,145.33/x
  3. Step 3: Cross multiply
    70,735.84x = 106,103.82 × 18,145.33
  4. Step 4: Simplify right side
    70,735.84x = 1,925,288,828.16
  5. Step 5: Solve for x
    x = 1,925,288,828.16/70,735.84
  6. Step 6: Final answer
    x = 27,218.01

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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.