Home / 101,277.18-139,763.97-55,956.21

Finding the Fourth Proportional to 101,277.18, 139,763.97 and 55,956.21

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Solution

The fourth proportional to 101,277.18, 139,763.97 and 55,956.21 is: 77,220.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,277.18 : 139,763.97 = 55,956.21 : x
  2. Step 2: Convert to fraction form
    101,277.18/139,763.97 = 55,956.21/x
  3. Step 3: Cross multiply
    101,277.18x = 139,763.97 × 55,956.21
  4. Step 4: Simplify right side
    101,277.18x = 7,820,661,077.15
  5. Step 5: Solve for x
    x = 7,820,661,077.15/101,277.18
  6. Step 6: Final answer
    x = 77,220.37

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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.