Finding the Fourth Proportional to 190,801.98, 263,305.62 and 105,918.84
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Solution
The fourth proportional to 190,801.98, 263,305.62 and 105,918.84 is: 146,167.38
Step by Step Solution
- Step 1: Write the proportion equation
190,801.98 : 263,305.62 = 105,918.84 : x - Step 2: Convert to fraction form
190,801.98/263,305.62 = 105,918.84/x - Step 3: Cross multiply
190,801.98x = 263,305.62 × 105,918.84 - Step 4: Simplify right side
190,801.98x = 27,889,025,835.88 - Step 5: Solve for x
x = 27,889,025,835.88/190,801.98 - Step 6: Final answer
x = 146,167.38
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1.5x scale
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.