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Finding the Fourth Proportional to 100,313.88, 150,495.92 and 70,789.36

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Solution

The fourth proportional to 100,313.88, 150,495.92 and 70,789.36 is: 106,201.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,313.88 : 150,495.92 = 70,789.36 : x
  2. Step 2: Convert to fraction form
    100,313.88/150,495.92 = 70,789.36/x
  3. Step 3: Cross multiply
    100,313.88x = 150,495.92 × 70,789.36
  4. Step 4: Simplify right side
    100,313.88x = 10,653,509,859.41
  5. Step 5: Solve for x
    x = 10,653,509,859.41/100,313.88
  6. Step 6: Final answer
    x = 106,201.75

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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.