Home / 189,665.70-261,743.96-104,788.23

Finding the Fourth Proportional to 189,665.70, 261,743.96 and 104,788.23

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Solution

The fourth proportional to 189,665.70, 261,743.96 and 104,788.23 is: 144,610.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,665.70 : 261,743.96 = 104,788.23 : x
  2. Step 2: Convert to fraction form
    189,665.70/261,743.96 = 104,788.23/x
  3. Step 3: Cross multiply
    189,665.70x = 261,743.96 × 104,788.23
  4. Step 4: Simplify right side
    189,665.70x = 27,427,686,281.59
  5. Step 5: Solve for x
    x = 27,427,686,281.59/189,665.70
  6. Step 6: Final answer
    x = 144,610.68

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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.