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Finding the Fourth Proportional to 111,973.37, 154,523.23 and 61,672.37

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Solution

The fourth proportional to 111,973.37, 154,523.23 and 61,672.37 is: 85,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,973.37 : 154,523.23 = 61,672.37 : x
  2. Step 2: Convert to fraction form
    111,973.37/154,523.23 = 61,672.37/x
  3. Step 3: Cross multiply
    111,973.37x = 154,523.23 × 61,672.37
  4. Step 4: Simplify right side
    111,973.37x = 9,529,812,887.36
  5. Step 5: Solve for x
    x = 9,529,812,887.36/111,973.37
  6. Step 6: Final answer
    x = 85,107.85

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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.