Home / 190,091.18-262,355.28-108,419.60

Finding the Fourth Proportional to 190,091.18, 262,355.28 and 108,419.60

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Solution

The fourth proportional to 190,091.18, 262,355.28 and 108,419.60 is: 149,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,091.18 : 262,355.28 = 108,419.60 : x
  2. Step 2: Convert to fraction form
    190,091.18/262,355.28 = 108,419.60/x
  3. Step 3: Cross multiply
    190,091.18x = 262,355.28 × 108,419.60
  4. Step 4: Simplify right side
    190,091.18x = 28,444,454,515.49
  5. Step 5: Solve for x
    x = 28,444,454,515.49/190,091.18
  6. Step 6: Final answer
    x = 149,635.85

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1.5x scale

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.