Home / 260,025.21-390,022.97-100,069.38

Finding the Fourth Proportional to 260,025.21, 390,022.97 and 100,069.38

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Solution

The fourth proportional to 260,025.21, 390,022.97 and 100,069.38 is: 150,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,025.21 : 390,022.97 = 100,069.38 : x
  2. Step 2: Convert to fraction form
    260,025.21/390,022.97 = 100,069.38/x
  3. Step 3: Cross multiply
    260,025.21x = 390,022.97 × 100,069.38
  4. Step 4: Simplify right side
    260,025.21x = 39,029,356,293.31
  5. Step 5: Solve for x
    x = 39,029,356,293.31/260,025.21
  6. Step 6: Final answer
    x = 150,098.36

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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.