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Finding the Fourth Proportional to 183,978.64, 253,892.78 and 103,401.44

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Solution

The fourth proportional to 183,978.64, 253,892.78 and 103,401.44 is: 142,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,978.64 : 253,892.78 = 103,401.44 : x
  2. Step 2: Convert to fraction form
    183,978.64/253,892.78 = 103,401.44/x
  3. Step 3: Cross multiply
    183,978.64x = 253,892.78 × 103,401.44
  4. Step 4: Simplify right side
    183,978.64x = 26,252,879,057.60
  5. Step 5: Solve for x
    x = 26,252,879,057.60/183,978.64
  6. Step 6: Final answer
    x = 142,695.26

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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.