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Finding the Fourth Proportional to 100,127.99, 150,206.57 and 30,012.77

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Solution

The fourth proportional to 100,127.99, 150,206.57 and 30,012.77 is: 45,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,127.99 : 150,206.57 = 30,012.77 : x
  2. Step 2: Convert to fraction form
    100,127.99/150,206.57 = 30,012.77/x
  3. Step 3: Cross multiply
    100,127.99x = 150,206.57 × 30,012.77
  4. Step 4: Simplify right side
    100,127.99x = 4,508,114,336.80
  5. Step 5: Solve for x
    x = 4,508,114,336.80/100,127.99
  6. Step 6: Final answer
    x = 45,023.52

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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.