Finding the Fourth Proportional to 137,553.68, 189,795.12 and 89,877.08
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Solution
The fourth proportional to 137,553.68, 189,795.12 and 89,877.08 is: 124,011.45
Step by Step Solution
- Step 1: Write the proportion equation
137,553.68 : 189,795.12 = 89,877.08 : x - Step 2: Convert to fraction form
137,553.68/189,795.12 = 89,877.08/x - Step 3: Cross multiply
137,553.68x = 189,795.12 × 89,877.08 - Step 4: Simplify right side
137,553.68x = 17,058,231,183.85 - Step 5: Solve for x
x = 17,058,231,183.85/137,553.68 - Step 6: Final answer
x = 124,011.45
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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.