Home / 70,733.11-106,099.68-18,142.59

Finding the Fourth Proportional to 70,733.11, 106,099.68 and 18,142.59

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Solution

The fourth proportional to 70,733.11, 106,099.68 and 18,142.59 is: 27,213.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,733.11 : 106,099.68 = 18,142.59 : x
  2. Step 2: Convert to fraction form
    70,733.11/106,099.68 = 18,142.59/x
  3. Step 3: Cross multiply
    70,733.11x = 106,099.68 × 18,142.59
  4. Step 4: Simplify right side
    70,733.11x = 1,924,922,993.37
  5. Step 5: Solve for x
    x = 1,924,922,993.37/70,733.11
  6. Step 6: Final answer
    x = 27,213.89

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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.