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Finding the Fourth Proportional to 183,078, 252,651.48 and 103,590

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Solution

The fourth proportional to 183,078, 252,651.48 and 103,590 is: 142,956.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,078 : 252,651.48 = 103,590 : x
  2. Step 2: Convert to fraction form
    183,078/252,651.48 = 103,590/x
  3. Step 3: Cross multiply
    183,078x = 252,651.48 × 103,590
  4. Step 4: Simplify right side
    183,078x = 26,172,166,813.20
  5. Step 5: Solve for x
    x = 26,172,166,813.20/183,078
  6. Step 6: Final answer
    x = 142,956.37

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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.