Home / 106,812.36-160,078.41-78,600.33

Finding the Fourth Proportional to 106,812.36, 160,078.41 and 78,600.33

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Solution

The fourth proportional to 106,812.36, 160,078.41 and 78,600.33 is: 117,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,812.36 : 160,078.41 = 78,600.33 : x
  2. Step 2: Convert to fraction form
    106,812.36/160,078.41 = 78,600.33/x
  3. Step 3: Cross multiply
    106,812.36x = 160,078.41 × 78,600.33
  4. Step 4: Simplify right side
    106,812.36x = 12,582,215,851.88
  5. Step 5: Solve for x
    x = 12,582,215,851.88/106,812.36
  6. Step 6: Final answer
    x = 117,797.38

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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.