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Finding the Fourth Proportional to 100,273.58, 150,243.61 and 70,628.79

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Solution

The fourth proportional to 100,273.58, 150,243.61 and 70,628.79 is: 105,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,273.58 : 150,243.61 = 70,628.79 : x
  2. Step 2: Convert to fraction form
    100,273.58/150,243.61 = 70,628.79/x
  3. Step 3: Cross multiply
    100,273.58x = 150,243.61 × 70,628.79
  4. Step 4: Simplify right side
    100,273.58x = 10,611,524,898.80
  5. Step 5: Solve for x
    x = 10,611,524,898.80/100,273.58
  6. Step 6: Final answer
    x = 105,825.73

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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.