Home / 101,148.21-139,583.84-55,826.19

Finding the Fourth Proportional to 101,148.21, 139,583.84 and 55,826.19

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Solution

The fourth proportional to 101,148.21, 139,583.84 and 55,826.19 is: 77,039.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,148.21 : 139,583.84 = 55,826.19 : x
  2. Step 2: Convert to fraction form
    101,148.21/139,583.84 = 55,826.19/x
  3. Step 3: Cross multiply
    101,148.21x = 139,583.84 × 55,826.19
  4. Step 4: Simplify right side
    101,148.21x = 7,792,433,972.77
  5. Step 5: Solve for x
    x = 7,792,433,972.77/101,148.21
  6. Step 6: Final answer
    x = 77,039.76

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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.