Home / 106,671.96-147,881.27-100,983.69

Finding the Fourth Proportional to 106,671.96, 147,881.27 and 100,983.69

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Solution

The fourth proportional to 106,671.96, 147,881.27 and 100,983.69 is: 139,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,671.96 : 147,881.27 = 100,983.69 : x
  2. Step 2: Convert to fraction form
    106,671.96/147,881.27 = 100,983.69/x
  3. Step 3: Cross multiply
    106,671.96x = 147,881.27 × 100,983.69
  4. Step 4: Simplify right side
    106,671.96x = 14,933,595,821.57
  5. Step 5: Solve for x
    x = 14,933,595,821.57/106,671.96
  6. Step 6: Final answer
    x = 139,995.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.