Home / 190,278.66-285,436.80-70,367.07

Finding the Fourth Proportional to 190,278.66, 285,436.80 and 70,367.07

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Solution

The fourth proportional to 190,278.66, 285,436.80 and 70,367.07 is: 105,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,278.66 : 285,436.80 = 70,367.07 : x
  2. Step 2: Convert to fraction form
    190,278.66/285,436.80 = 70,367.07/x
  3. Step 3: Cross multiply
    190,278.66x = 285,436.80 × 70,367.07
  4. Step 4: Simplify right side
    190,278.66x = 20,085,351,286.18
  5. Step 5: Solve for x
    x = 20,085,351,286.18/190,278.66
  6. Step 6: Final answer
    x = 105,557.56

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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.