Home / 190,208.15-262,495.16-105,325.21

Finding the Fourth Proportional to 190,208.15, 262,495.16 and 105,325.21

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Solution

The fourth proportional to 190,208.15, 262,495.16 and 105,325.21 is: 145,353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,208.15 : 262,495.16 = 105,325.21 : x
  2. Step 2: Convert to fraction form
    190,208.15/262,495.16 = 105,325.21/x
  3. Step 3: Cross multiply
    190,208.15x = 262,495.16 × 105,325.21
  4. Step 4: Simplify right side
    190,208.15x = 27,647,357,850.98
  5. Step 5: Solve for x
    x = 27,647,357,850.98/190,208.15
  6. Step 6: Final answer
    x = 145,353.17

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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.