Home / 190,615.38-263,042.52-105,740.34

Finding the Fourth Proportional to 190,615.38, 263,042.52 and 105,740.34

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Solution

The fourth proportional to 190,615.38, 263,042.52 and 105,740.34 is: 145,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,615.38 : 263,042.52 = 105,740.34 : x
  2. Step 2: Convert to fraction form
    190,615.38/263,042.52 = 105,740.34/x
  3. Step 3: Cross multiply
    190,615.38x = 263,042.52 × 105,740.34
  4. Step 4: Simplify right side
    190,615.38x = 27,814,205,499.26
  5. Step 5: Solve for x
    x = 27,814,205,499.26/190,615.38
  6. Step 6: Final answer
    x = 145,917.95

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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.