Home / 190,613.13-263,046.38-105,730.19

Finding the Fourth Proportional to 190,613.13, 263,046.38 and 105,730.19

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Solution

The fourth proportional to 190,613.13, 263,046.38 and 105,730.19 is: 145,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,613.13 : 263,046.38 = 105,730.19 : x
  2. Step 2: Convert to fraction form
    190,613.13/263,046.38 = 105,730.19/x
  3. Step 3: Cross multiply
    190,613.13x = 263,046.38 × 105,730.19
  4. Step 4: Simplify right side
    190,613.13x = 27,811,943,736.21
  5. Step 5: Solve for x
    x = 27,811,943,736.21/190,613.13
  6. Step 6: Final answer
    x = 145,907.81

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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.