Home / 190,334.40-262,677.60-105,478.08

Finding the Fourth Proportional to 190,334.40, 262,677.60 and 105,478.08

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Solution

The fourth proportional to 190,334.40, 262,677.60 and 105,478.08 is: 145,568.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,334.40 : 262,677.60 = 105,478.08 : x
  2. Step 2: Convert to fraction form
    190,334.40/262,677.60 = 105,478.08/x
  3. Step 3: Cross multiply
    190,334.40x = 262,677.60 × 105,478.08
  4. Step 4: Simplify right side
    190,334.40x = 27,706,728,907.01
  5. Step 5: Solve for x
    x = 27,706,728,907.01/190,334.40
  6. Step 6: Final answer
    x = 145,568.69

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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.