Home / 100,923.32-139,274.22-58,506.44

Finding the Fourth Proportional to 100,923.32, 139,274.22 and 58,506.44

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Solution

The fourth proportional to 100,923.32, 139,274.22 and 58,506.44 is: 80,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,923.32 : 139,274.22 = 58,506.44 : x
  2. Step 2: Convert to fraction form
    100,923.32/139,274.22 = 58,506.44/x
  3. Step 3: Cross multiply
    100,923.32x = 139,274.22 × 58,506.44
  4. Step 4: Simplify right side
    100,923.32x = 8,148,438,795.98
  5. Step 5: Solve for x
    x = 8,148,438,795.98/100,923.32
  6. Step 6: Final answer
    x = 80,738.91

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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.