Home / 105,100.06-145,042.44-59,786.03

Finding the Fourth Proportional to 105,100.06, 145,042.44 and 59,786.03

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Solution

The fourth proportional to 105,100.06, 145,042.44 and 59,786.03 is: 82,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,100.06 : 145,042.44 = 59,786.03 : x
  2. Step 2: Convert to fraction form
    105,100.06/145,042.44 = 59,786.03/x
  3. Step 3: Cross multiply
    105,100.06x = 145,042.44 × 59,786.03
  4. Step 4: Simplify right side
    105,100.06x = 8,671,511,669.11
  5. Step 5: Solve for x
    x = 8,671,511,669.11/105,100.06
  6. Step 6: Final answer
    x = 82,507.20

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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.