Finding the Fourth Proportional to 116,916.99, 161,237.84 and 76,616.11
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Solution
The fourth proportional to 116,916.99, 161,237.84 and 76,616.11 is: 105,659.72
Step by Step Solution
- Step 1: Write the proportion equation
116,916.99 : 161,237.84 = 76,616.11 : x - Step 2: Convert to fraction form
116,916.99/161,237.84 = 76,616.11/x - Step 3: Cross multiply
116,916.99x = 161,237.84 × 76,616.11 - Step 4: Simplify right side
116,916.99x = 12,353,416,335.03 - Step 5: Solve for x
x = 12,353,416,335.03/116,916.99 - Step 6: Final answer
x = 105,659.72
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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.