Home / 190,878.58-263,421.21-105,995.98

Finding the Fourth Proportional to 190,878.58, 263,421.21 and 105,995.98

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Solution

The fourth proportional to 190,878.58, 263,421.21 and 105,995.98 is: 146,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,878.58 : 263,421.21 = 105,995.98 : x
  2. Step 2: Convert to fraction form
    190,878.58/263,421.21 = 105,995.98/x
  3. Step 3: Cross multiply
    190,878.58x = 263,421.21 × 105,995.98
  4. Step 4: Simplify right side
    190,878.58x = 27,921,589,306.74
  5. Step 5: Solve for x
    x = 27,921,589,306.74/190,878.58
  6. Step 6: Final answer
    x = 146,279.32

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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.