Home / 106,739.28-160,103.12-54,147.38

Finding the Fourth Proportional to 106,739.28, 160,103.12 and 54,147.38

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Solution

The fourth proportional to 106,739.28, 160,103.12 and 54,147.38 is: 81,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,739.28 : 160,103.12 = 54,147.38 : x
  2. Step 2: Convert to fraction form
    106,739.28/160,103.12 = 54,147.38/x
  3. Step 3: Cross multiply
    106,739.28x = 160,103.12 × 54,147.38
  4. Step 4: Simplify right side
    106,739.28x = 8,669,164,477.83
  5. Step 5: Solve for x
    x = 8,669,164,477.83/106,739.28
  6. Step 6: Final answer
    x = 81,218.13

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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.