Home / 118,556.78-163,533.53-82,733.72

Finding the Fourth Proportional to 118,556.78, 163,533.53 and 82,733.72

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Solution

The fourth proportional to 118,556.78, 163,533.53 and 82,733.72 is: 114,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,556.78 : 163,533.53 = 82,733.72 : x
  2. Step 2: Convert to fraction form
    118,556.78/163,533.53 = 82,733.72/x
  3. Step 3: Cross multiply
    118,556.78x = 163,533.53 × 82,733.72
  4. Step 4: Simplify right side
    118,556.78x = 13,529,736,050.30
  5. Step 5: Solve for x
    x = 13,529,736,050.30/118,556.78
  6. Step 6: Final answer
    x = 114,120.31

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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.