Finding the Fourth Proportional to 137,379.53, 189,648.68 and 92,087.09
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Solution
The fourth proportional to 137,379.53, 189,648.68 and 92,087.09 is: 127,123.71
Step by Step Solution
- Step 1: Write the proportion equation
137,379.53 : 189,648.68 = 92,087.09 : x - Step 2: Convert to fraction form
137,379.53/189,648.68 = 92,087.09/x - Step 3: Cross multiply
137,379.53x = 189,648.68 × 92,087.09 - Step 4: Simplify right side
137,379.53x = 17,464,195,077.23 - Step 5: Solve for x
x = 17,464,195,077.23/137,379.53 - Step 6: Final answer
x = 127,123.71
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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.