Finding the Fourth Proportional to 137,349.68, 189,538.11 and 76,093.32
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Solution
The fourth proportional to 137,349.68, 189,538.11 and 76,093.32 is: 105,006.33
Step by Step Solution
- Step 1: Write the proportion equation
137,349.68 : 189,538.11 = 76,093.32 : x - Step 2: Convert to fraction form
137,349.68/189,538.11 = 76,093.32/x - Step 3: Cross multiply
137,349.68x = 189,538.11 × 76,093.32 - Step 4: Simplify right side
137,349.68x = 14,422,584,767.19 - Step 5: Solve for x
x = 14,422,584,767.19/137,349.68 - Step 6: Final answer
x = 105,006.33
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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.