Finding the Fourth Proportional to 199,675.19, 275,083.49 and 139,136.00
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Solution
The fourth proportional to 199,675.19, 275,083.49 and 139,136.00 is: 191,681.37
Step by Step Solution
- Step 1: Write the proportion equation
199,675.19 : 275,083.49 = 139,136.00 : x - Step 2: Convert to fraction form
199,675.19/275,083.49 = 139,136.00/x - Step 3: Cross multiply
199,675.19x = 275,083.49 × 139,136.00 - Step 4: Simplify right side
199,675.19x = 38,274,015,437.06 - Step 5: Solve for x
x = 38,274,015,437.06/199,675.19 - Step 6: Final answer
x = 191,681.37
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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.