Finding the Fourth Proportional to 137,280.08, 189,450.70 and 76,850.48
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Solution
The fourth proportional to 137,280.08, 189,450.70 and 76,850.48 is: 106,056.01
Step by Step Solution
- Step 1: Write the proportion equation
137,280.08 : 189,450.70 = 76,850.48 : x - Step 2: Convert to fraction form
137,280.08/189,450.70 = 76,850.48/x - Step 3: Cross multiply
137,280.08x = 189,450.70 × 76,850.48 - Step 4: Simplify right side
137,280.08x = 14,559,377,231.34 - Step 5: Solve for x
x = 14,559,377,231.34/137,280.08 - Step 6: Final answer
x = 106,056.01
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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.