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Finding the Fourth Proportional to 101,622.60, 140,237.28 and 61,338.06

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Solution

The fourth proportional to 101,622.60, 140,237.28 and 61,338.06 is: 84,645.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,622.60 : 140,237.28 = 61,338.06 : x
  2. Step 2: Convert to fraction form
    101,622.60/140,237.28 = 61,338.06/x
  3. Step 3: Cross multiply
    101,622.60x = 140,237.28 × 61,338.06
  4. Step 4: Simplify right side
    101,622.60x = 8,601,882,694.88
  5. Step 5: Solve for x
    x = 8,601,882,694.88/101,622.60
  6. Step 6: Final answer
    x = 84,645.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.