Home / 102,980.10-141,991.46-82,545.83

Finding the Fourth Proportional to 102,980.10, 141,991.46 and 82,545.83

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Solution

The fourth proportional to 102,980.10, 141,991.46 and 82,545.83 is: 113,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,980.10 : 141,991.46 = 82,545.83 : x
  2. Step 2: Convert to fraction form
    102,980.10/141,991.46 = 82,545.83/x
  3. Step 3: Cross multiply
    102,980.10x = 141,991.46 × 82,545.83
  4. Step 4: Simplify right side
    102,980.10x = 11,720,802,208.65
  5. Step 5: Solve for x
    x = 11,720,802,208.65/102,980.10
  6. Step 6: Final answer
    x = 113,816.19

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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.