Home / 189,700.80-261,794.76-109,128.36

Finding the Fourth Proportional to 189,700.80, 261,794.76 and 109,128.36

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Solution

The fourth proportional to 189,700.80, 261,794.76 and 109,128.36 is: 150,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,700.80 : 261,794.76 = 109,128.36 : x
  2. Step 2: Convert to fraction form
    189,700.80/261,794.76 = 109,128.36/x
  3. Step 3: Cross multiply
    189,700.80x = 261,794.76 × 109,128.36
  4. Step 4: Simplify right side
    189,700.80x = 28,569,232,815.39
  5. Step 5: Solve for x
    x = 28,569,232,815.39/189,700.80
  6. Step 6: Final answer
    x = 150,601.54

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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.