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Finding the Fourth Proportional to 195,940.98, 293,665.55 and 105,980.09

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Solution

The fourth proportional to 195,940.98, 293,665.55 and 105,980.09 is: 158,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,940.98 : 293,665.55 = 105,980.09 : x
  2. Step 2: Convert to fraction form
    195,940.98/293,665.55 = 105,980.09/x
  3. Step 3: Cross multiply
    195,940.98x = 293,665.55 × 105,980.09
  4. Step 4: Simplify right side
    195,940.98x = 31,122,699,420.67
  5. Step 5: Solve for x
    x = 31,122,699,420.67/195,940.98
  6. Step 6: Final answer
    x = 158,837.11

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1.5x scale

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.