Home / 190,137.28-262,416.90-109,549.36

Finding the Fourth Proportional to 190,137.28, 262,416.90 and 109,549.36

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Solution

The fourth proportional to 190,137.28, 262,416.90 and 109,549.36 is: 151,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,137.28 : 262,416.90 = 109,549.36 : x
  2. Step 2: Convert to fraction form
    190,137.28/262,416.90 = 109,549.36/x
  3. Step 3: Cross multiply
    190,137.28x = 262,416.90 × 109,549.36
  4. Step 4: Simplify right side
    190,137.28x = 28,747,603,448.18
  5. Step 5: Solve for x
    x = 28,747,603,448.18/190,137.28
  6. Step 6: Final answer
    x = 151,193.93

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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.