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Finding the Fourth Proportional to 101,356.59, 152,059.68 and 71,429.22

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Solution

The fourth proportional to 101,356.59, 152,059.68 and 71,429.22 is: 107,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,356.59 : 152,059.68 = 71,429.22 : x
  2. Step 2: Convert to fraction form
    101,356.59/152,059.68 = 71,429.22/x
  3. Step 3: Cross multiply
    101,356.59x = 152,059.68 × 71,429.22
  4. Step 4: Simplify right side
    101,356.59x = 10,861,504,335.85
  5. Step 5: Solve for x
    x = 10,861,504,335.85/101,356.59
  6. Step 6: Final answer
    x = 107,161.30

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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.