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Finding the Fourth Proportional to 101,259.99, 139,738.23 and 55,941.09

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Solution

The fourth proportional to 101,259.99, 139,738.23 and 55,941.09 is: 77,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,259.99 : 139,738.23 = 55,941.09 : x
  2. Step 2: Convert to fraction form
    101,259.99/139,738.23 = 55,941.09/x
  3. Step 3: Cross multiply
    101,259.99x = 139,738.23 × 55,941.09
  4. Step 4: Simplify right side
    101,259.99x = 7,817,108,900.87
  5. Step 5: Solve for x
    x = 7,817,108,900.87/101,259.99
  6. Step 6: Final answer
    x = 77,198.40

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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.