Home / 102,738.03-141,777.99-57,415.98

Finding the Fourth Proportional to 102,738.03, 141,777.99 and 57,415.98

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Solution

The fourth proportional to 102,738.03, 141,777.99 and 57,415.98 is: 79,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,738.03 : 141,777.99 = 57,415.98 : x
  2. Step 2: Convert to fraction form
    102,738.03/141,777.99 = 57,415.98/x
  3. Step 3: Cross multiply
    102,738.03x = 141,777.99 × 57,415.98
  4. Step 4: Simplify right side
    102,738.03x = 8,140,322,629.89
  5. Step 5: Solve for x
    x = 8,140,322,629.89/102,738.03
  6. Step 6: Final answer
    x = 79,233.78

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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.