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Finding the Fourth Proportional to 133,458.64, 200,129.64 and 39,942.52

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Solution

The fourth proportional to 133,458.64, 200,129.64 and 39,942.52 is: 59,896.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,458.64 : 200,129.64 = 39,942.52 : x
  2. Step 2: Convert to fraction form
    133,458.64/200,129.64 = 39,942.52/x
  3. Step 3: Cross multiply
    133,458.64x = 200,129.64 × 39,942.52
  4. Step 4: Simplify right side
    133,458.64x = 7,993,681,498.18
  5. Step 5: Solve for x
    x = 7,993,681,498.18/133,458.64
  6. Step 6: Final answer
    x = 59,896.32

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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.