Home / 106,399.71-159,491.85-68,983.56

Finding the Fourth Proportional to 106,399.71, 159,491.85 and 68,983.56

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Solution

The fourth proportional to 106,399.71, 159,491.85 and 68,983.56 is: 103,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,399.71 : 159,491.85 = 68,983.56 : x
  2. Step 2: Convert to fraction form
    106,399.71/159,491.85 = 68,983.56/x
  3. Step 3: Cross multiply
    106,399.71x = 159,491.85 × 68,983.56
  4. Step 4: Simplify right side
    106,399.71x = 11,002,315,603.99
  5. Step 5: Solve for x
    x = 11,002,315,603.99/106,399.71
  6. Step 6: Final answer
    x = 103,405.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.