Home / 190,276.50-262,581.57-105,399.06

Finding the Fourth Proportional to 190,276.50, 262,581.57 and 105,399.06

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Solution

The fourth proportional to 190,276.50, 262,581.57 and 105,399.06 is: 145,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,276.50 : 262,581.57 = 105,399.06 : x
  2. Step 2: Convert to fraction form
    190,276.50/262,581.57 = 105,399.06/x
  3. Step 3: Cross multiply
    190,276.50x = 262,581.57 × 105,399.06
  4. Step 4: Simplify right side
    190,276.50x = 27,675,850,651.32
  5. Step 5: Solve for x
    x = 27,675,850,651.32/190,276.50
  6. Step 6: Final answer
    x = 145,450.70

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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.