Home / 190,142.28-285,369.32-77,823.60

Finding the Fourth Proportional to 190,142.28, 285,369.32 and 77,823.60

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Solution

The fourth proportional to 190,142.28, 285,369.32 and 77,823.60 is: 116,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,142.28 : 285,369.32 = 77,823.60 : x
  2. Step 2: Convert to fraction form
    190,142.28/285,369.32 = 77,823.60/x
  3. Step 3: Cross multiply
    190,142.28x = 285,369.32 × 77,823.60
  4. Step 4: Simplify right side
    190,142.28x = 22,208,467,811.95
  5. Step 5: Solve for x
    x = 22,208,467,811.95/190,142.28
  6. Step 6: Final answer
    x = 116,799.21

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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.