Home / 106,020.17-158,911.74-45,979.32

Finding the Fourth Proportional to 106,020.17, 158,911.74 and 45,979.32

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Solution

The fourth proportional to 106,020.17, 158,911.74 and 45,979.32 is: 68,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,020.17 : 158,911.74 = 45,979.32 : x
  2. Step 2: Convert to fraction form
    106,020.17/158,911.74 = 45,979.32/x
  3. Step 3: Cross multiply
    106,020.17x = 158,911.74 × 45,979.32
  4. Step 4: Simplify right side
    106,020.17x = 7,306,653,745.22
  5. Step 5: Solve for x
    x = 7,306,653,745.22/106,020.17
  6. Step 6: Final answer
    x = 68,917.58

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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.