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Finding the Fourth Proportional to 135,953.80, 203,930.70 and 47,216.28

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Solution

The fourth proportional to 135,953.80, 203,930.70 and 47,216.28 is: 70,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,953.80 : 203,930.70 = 47,216.28 : x
  2. Step 2: Convert to fraction form
    135,953.80/203,930.70 = 47,216.28/x
  3. Step 3: Cross multiply
    135,953.80x = 203,930.70 × 47,216.28
  4. Step 4: Simplify right side
    135,953.80x = 9,628,848,012.14
  5. Step 5: Solve for x
    x = 9,628,848,012.14/135,953.80
  6. Step 6: Final answer
    x = 70,824.41

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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.