Home / 190,406.59-262,761.09-105,529.12

Finding the Fourth Proportional to 190,406.59, 262,761.09 and 105,529.12

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Solution

The fourth proportional to 190,406.59, 262,761.09 and 105,529.12 is: 145,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,406.59 : 262,761.09 = 105,529.12 : x
  2. Step 2: Convert to fraction form
    190,406.59/262,761.09 = 105,529.12/x
  3. Step 3: Cross multiply
    190,406.59x = 262,761.09 × 105,529.12
  4. Step 4: Simplify right side
    190,406.59x = 27,728,946,597.94
  5. Step 5: Solve for x
    x = 27,728,946,597.94/190,406.59
  6. Step 6: Final answer
    x = 145,630.18

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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.