Home / 189,986.58-262,167.03-105,101.82

Finding the Fourth Proportional to 189,986.58, 262,167.03 and 105,101.82

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Solution

The fourth proportional to 189,986.58, 262,167.03 and 105,101.82 is: 145,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,986.58 : 262,167.03 = 105,101.82 : x
  2. Step 2: Convert to fraction form
    189,986.58/262,167.03 = 105,101.82/x
  3. Step 3: Cross multiply
    189,986.58x = 262,167.03 × 105,101.82
  4. Step 4: Simplify right side
    189,986.58x = 27,554,231,996.99
  5. Step 5: Solve for x
    x = 27,554,231,996.99/189,986.58
  6. Step 6: Final answer
    x = 145,032.52

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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.