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Finding the Fourth Proportional to 100,124.79, 150,099.71 and 50,134.83

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Solution

The fourth proportional to 100,124.79, 150,099.71 and 50,134.83 is: 75,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,124.79 : 150,099.71 = 50,134.83 : x
  2. Step 2: Convert to fraction form
    100,124.79/150,099.71 = 50,134.83/x
  3. Step 3: Cross multiply
    100,124.79x = 150,099.71 × 50,134.83
  4. Step 4: Simplify right side
    100,124.79x = 7,525,223,193.23
  5. Step 5: Solve for x
    x = 7,525,223,193.23/100,124.79
  6. Step 6: Final answer
    x = 75,158.44

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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.