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Finding the Fourth Proportional to 100,125.79, 150,101.20 and 50,135.83

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Solution

The fourth proportional to 100,125.79, 150,101.20 and 50,135.83 is: 75,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,125.79 : 150,101.20 = 50,135.83 : x
  2. Step 2: Convert to fraction form
    100,125.79/150,101.20 = 50,135.83/x
  3. Step 3: Cross multiply
    100,125.79x = 150,101.20 × 50,135.83
  4. Step 4: Simplify right side
    100,125.79x = 7,525,448,246.00
  5. Step 5: Solve for x
    x = 7,525,448,246.00/100,125.79
  6. Step 6: Final answer
    x = 75,159.94

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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.