Finding the Fourth Proportional to 117,862.65, 162,239.67 and 102,729.03
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Solution
The fourth proportional to 117,862.65, 162,239.67 and 102,729.03 is: 141,408.02
Step by Step Solution
- Step 1: Write the proportion equation
117,862.65 : 162,239.67 = 102,729.03 : x - Step 2: Convert to fraction form
117,862.65/162,239.67 = 102,729.03/x - Step 3: Cross multiply
117,862.65x = 162,239.67 × 102,729.03 - Step 4: Simplify right side
117,862.65x = 16,666,723,926.62 - Step 5: Solve for x
x = 16,666,723,926.62/117,862.65 - Step 6: Final answer
x = 141,408.02
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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.