Home / 190,765.40-263,279.58-105,909.80

Finding the Fourth Proportional to 190,765.40, 263,279.58 and 105,909.80

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Solution

The fourth proportional to 190,765.40, 263,279.58 and 105,909.80 is: 146,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,765.40 : 263,279.58 = 105,909.80 : x
  2. Step 2: Convert to fraction form
    190,765.40/263,279.58 = 105,909.80/x
  3. Step 3: Cross multiply
    190,765.40x = 263,279.58 × 105,909.80
  4. Step 4: Simplify right side
    190,765.40x = 27,883,887,661.88
  5. Step 5: Solve for x
    x = 27,883,887,661.88/190,765.40
  6. Step 6: Final answer
    x = 146,168.48

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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.