Home / 190,395.90-262,756.80-105,511.14

Finding the Fourth Proportional to 190,395.90, 262,756.80 and 105,511.14

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Solution

The fourth proportional to 190,395.90, 262,756.80 and 105,511.14 is: 145,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,395.90 : 262,756.80 = 105,511.14 : x
  2. Step 2: Convert to fraction form
    190,395.90/262,756.80 = 105,511.14/x
  3. Step 3: Cross multiply
    190,395.90x = 262,756.80 × 105,511.14
  4. Step 4: Simplify right side
    190,395.90x = 27,723,769,510.75
  5. Step 5: Solve for x
    x = 27,723,769,510.75/190,395.90
  6. Step 6: Final answer
    x = 145,611.17

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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.