Home / 131,805.08-181,883.80-78,095.04

Finding the Fourth Proportional to 131,805.08, 181,883.80 and 78,095.04

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Solution

The fourth proportional to 131,805.08, 181,883.80 and 78,095.04 is: 107,766.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,805.08 : 181,883.80 = 78,095.04 : x
  2. Step 2: Convert to fraction form
    131,805.08/181,883.80 = 78,095.04/x
  3. Step 3: Cross multiply
    131,805.08x = 181,883.80 × 78,095.04
  4. Step 4: Simplify right side
    131,805.08x = 14,204,222,636.35
  5. Step 5: Solve for x
    x = 14,204,222,636.35/131,805.08
  6. Step 6: Final answer
    x = 107,766.88

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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.