Home / 190,136.95-262,390.94-105,252.19

Finding the Fourth Proportional to 190,136.95, 262,390.94 and 105,252.19

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Solution

The fourth proportional to 190,136.95, 262,390.94 and 105,252.19 is: 145,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,136.95 : 262,390.94 = 105,252.19 : x
  2. Step 2: Convert to fraction form
    190,136.95/262,390.94 = 105,252.19/x
  3. Step 3: Cross multiply
    190,136.95x = 262,390.94 × 105,252.19
  4. Step 4: Simplify right side
    190,136.95x = 27,617,220,544.90
  5. Step 5: Solve for x
    x = 27,617,220,544.90/190,136.95
  6. Step 6: Final answer
    x = 145,249.10

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Half scale
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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.