Home / 190,619.40-285,929.10-104,998.35

Finding the Fourth Proportional to 190,619.40, 285,929.10 and 104,998.35

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Solution

The fourth proportional to 190,619.40, 285,929.10 and 104,998.35 is: 157,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,619.40 : 285,929.10 = 104,998.35 : x
  2. Step 2: Convert to fraction form
    190,619.40/285,929.10 = 104,998.35/x
  3. Step 3: Cross multiply
    190,619.40x = 285,929.10 × 104,998.35
  4. Step 4: Simplify right side
    190,619.40x = 30,022,083,716.99
  5. Step 5: Solve for x
    x = 30,022,083,716.99/190,619.40
  6. Step 6: Final answer
    x = 157,497.53

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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.