Home / 189,721.83-261,816.21-104,838.89

Finding the Fourth Proportional to 189,721.83, 261,816.21 and 104,838.89

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Solution

The fourth proportional to 189,721.83, 261,816.21 and 104,838.89 is: 144,677.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,721.83 : 261,816.21 = 104,838.89 : x
  2. Step 2: Convert to fraction form
    189,721.83/261,816.21 = 104,838.89/x
  3. Step 3: Cross multiply
    189,721.83x = 261,816.21 × 104,838.89
  4. Step 4: Simplify right side
    189,721.83x = 27,448,520,840.41
  5. Step 5: Solve for x
    x = 27,448,520,840.41/189,721.83
  6. Step 6: Final answer
    x = 144,677.71

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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.