Home / 131,805.58-181,884.49-78,095.54

Finding the Fourth Proportional to 131,805.58, 181,884.49 and 78,095.54

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Solution

The fourth proportional to 131,805.58, 181,884.49 and 78,095.54 is: 107,767.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,805.58 : 181,884.49 = 78,095.54 : x
  2. Step 2: Convert to fraction form
    131,805.58/181,884.49 = 78,095.54/x
  3. Step 3: Cross multiply
    131,805.58x = 181,884.49 × 78,095.54
  4. Step 4: Simplify right side
    131,805.58x = 14,204,367,464.17
  5. Step 5: Solve for x
    x = 14,204,367,464.17/131,805.58
  6. Step 6: Final answer
    x = 107,767.57

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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.