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Finding the Fourth Proportional to 183,879.90, 253,738.70 and 103,301.10

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Solution

The fourth proportional to 183,879.90, 253,738.70 and 103,301.10 is: 142,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,879.90 : 253,738.70 = 103,301.10 : x
  2. Step 2: Convert to fraction form
    183,879.90/253,738.70 = 103,301.10/x
  3. Step 3: Cross multiply
    183,879.90x = 253,738.70 × 103,301.10
  4. Step 4: Simplify right side
    183,879.90x = 26,211,486,822.57
  5. Step 5: Solve for x
    x = 26,211,486,822.57/183,879.90
  6. Step 6: Final answer
    x = 142,546.78

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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.