Home / 107,629.10-161,443.65-82,717.10

Finding the Fourth Proportional to 107,629.10, 161,443.65 and 82,717.10

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Solution

The fourth proportional to 107,629.10, 161,443.65 and 82,717.10 is: 124,075.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,629.10 : 161,443.65 = 82,717.10 : x
  2. Step 2: Convert to fraction form
    107,629.10/161,443.65 = 82,717.10/x
  3. Step 3: Cross multiply
    107,629.10x = 161,443.65 × 82,717.10
  4. Step 4: Simplify right side
    107,629.10x = 13,354,150,541.42
  5. Step 5: Solve for x
    x = 13,354,150,541.42/107,629.10
  6. Step 6: Final answer
    x = 124,075.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.