Home / 106,725.06-147,279.87-58,978.44

Finding the Fourth Proportional to 106,725.06, 147,279.87 and 58,978.44

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Solution

The fourth proportional to 106,725.06, 147,279.87 and 58,978.44 is: 81,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,725.06 : 147,279.87 = 58,978.44 : x
  2. Step 2: Convert to fraction form
    106,725.06/147,279.87 = 58,978.44/x
  3. Step 3: Cross multiply
    106,725.06x = 147,279.87 × 58,978.44
  4. Step 4: Simplify right side
    106,725.06x = 8,686,336,976.00
  5. Step 5: Solve for x
    x = 8,686,336,976.00/106,725.06
  6. Step 6: Final answer
    x = 81,389.85

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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.