Home / 190,713.88-263,186.18-105,830.94

Finding the Fourth Proportional to 190,713.88, 263,186.18 and 105,830.94

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Solution

The fourth proportional to 190,713.88, 263,186.18 and 105,830.94 is: 146,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,713.88 : 263,186.18 = 105,830.94 : x
  2. Step 2: Convert to fraction form
    190,713.88/263,186.18 = 105,830.94/x
  3. Step 3: Cross multiply
    190,713.88x = 263,186.18 × 105,830.94
  4. Step 4: Simplify right side
    190,713.88x = 27,853,240,824.41
  5. Step 5: Solve for x
    x = 27,853,240,824.41/190,713.88
  6. Step 6: Final answer
    x = 146,047.27

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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.