Home / 107,121.78-147,828.09-59,374.10

Finding the Fourth Proportional to 107,121.78, 147,828.09 and 59,374.10

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Solution

The fourth proportional to 107,121.78, 147,828.09 and 59,374.10 is: 81,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,121.78 : 147,828.09 = 59,374.10 : x
  2. Step 2: Convert to fraction form
    107,121.78/147,828.09 = 59,374.10/x
  3. Step 3: Cross multiply
    107,121.78x = 147,828.09 × 59,374.10
  4. Step 4: Simplify right side
    107,121.78x = 8,777,159,059.33
  5. Step 5: Solve for x
    x = 8,777,159,059.33/107,121.78
  6. Step 6: Final answer
    x = 81,936.27

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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.