Home / 100,141.82-150,212.76-30,021.14

Finding the Fourth Proportional to 100,141.82, 150,212.76 and 30,021.14

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Solution

The fourth proportional to 100,141.82, 150,212.76 and 30,021.14 is: 45,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,141.82 : 150,212.76 = 30,021.14 : x
  2. Step 2: Convert to fraction form
    100,141.82/150,212.76 = 30,021.14/x
  3. Step 3: Cross multiply
    100,141.82x = 150,212.76 × 30,021.14
  4. Step 4: Simplify right side
    100,141.82x = 4,509,558,297.75
  5. Step 5: Solve for x
    x = 4,509,558,297.75/100,141.82
  6. Step 6: Final answer
    x = 45,031.72

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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.