Home / 189,698.52-261,782.10-104,813.76

Finding the Fourth Proportional to 189,698.52, 261,782.10 and 104,813.76

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Solution

The fourth proportional to 189,698.52, 261,782.10 and 104,813.76 is: 144,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,698.52 : 261,782.10 = 104,813.76 : x
  2. Step 2: Convert to fraction form
    189,698.52/261,782.10 = 104,813.76/x
  3. Step 3: Cross multiply
    189,698.52x = 261,782.10 × 104,813.76
  4. Step 4: Simplify right side
    189,698.52x = 27,438,366,201.70
  5. Step 5: Solve for x
    x = 27,438,366,201.70/189,698.52
  6. Step 6: Final answer
    x = 144,641.96

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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.