Home / 190,636.16-263,090.40-105,762.56

Finding the Fourth Proportional to 190,636.16, 263,090.40 and 105,762.56

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Solution

The fourth proportional to 190,636.16, 263,090.40 and 105,762.56 is: 145,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,636.16 : 263,090.40 = 105,762.56 : x
  2. Step 2: Convert to fraction form
    190,636.16/263,090.40 = 105,762.56/x
  3. Step 3: Cross multiply
    190,636.16x = 263,090.40 × 105,762.56
  4. Step 4: Simplify right side
    190,636.16x = 27,825,114,215.42
  5. Step 5: Solve for x
    x = 27,825,114,215.42/190,636.16
  6. Step 6: Final answer
    x = 145,959.27

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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.