Home / 189,986.34-262,180.08-105,101.58

Finding the Fourth Proportional to 189,986.34, 262,180.08 and 105,101.58

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Solution

The fourth proportional to 189,986.34, 262,180.08 and 105,101.58 is: 145,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,986.34 : 262,180.08 = 105,101.58 : x
  2. Step 2: Convert to fraction form
    189,986.34/262,180.08 = 105,101.58/x
  3. Step 3: Cross multiply
    189,986.34x = 262,180.08 × 105,101.58
  4. Step 4: Simplify right side
    189,986.34x = 27,555,540,652.53
  5. Step 5: Solve for x
    x = 27,555,540,652.53/189,986.34
  6. Step 6: Final answer
    x = 145,039.59

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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.