Finding the Fourth Proportional to 137,368.72, 189,591.69 and 94,312.99
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Solution
The fourth proportional to 137,368.72, 189,591.69 and 94,312.99 is: 130,167.62
Step by Step Solution
- Step 1: Write the proportion equation
137,368.72 : 189,591.69 = 94,312.99 : x - Step 2: Convert to fraction form
137,368.72/189,591.69 = 94,312.99/x - Step 3: Cross multiply
137,368.72x = 189,591.69 × 94,312.99 - Step 4: Simplify right side
137,368.72x = 17,880,959,163.05 - Step 5: Solve for x
x = 17,880,959,163.05/137,368.72 - Step 6: Final answer
x = 130,167.62
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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.