Finding the Fourth Proportional to 187,111.23, 258,486.71 and 161,916.99
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Solution
The fourth proportional to 187,111.23, 258,486.71 and 161,916.99 is: 223,681.87
Step by Step Solution
- Step 1: Write the proportion equation
187,111.23 : 258,486.71 = 161,916.99 : x - Step 2: Convert to fraction form
187,111.23/258,486.71 = 161,916.99/x - Step 3: Cross multiply
187,111.23x = 258,486.71 × 161,916.99 - Step 4: Simplify right side
187,111.23x = 41,853,390,038.20 - Step 5: Solve for x
x = 41,853,390,038.20/187,111.23 - Step 6: Final answer
x = 223,681.87
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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.