Finding the Fourth Proportional to 129,895.08, 194,696.88 and 85,002.81
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Solution
The fourth proportional to 129,895.08, 194,696.88 and 85,002.81 is: 127,408.84
Step by Step Solution
- Step 1: Write the proportion equation
129,895.08 : 194,696.88 = 85,002.81 : x - Step 2: Convert to fraction form
129,895.08/194,696.88 = 85,002.81/x - Step 3: Cross multiply
129,895.08x = 194,696.88 × 85,002.81 - Step 4: Simplify right side
129,895.08x = 16,549,781,898.23 - Step 5: Solve for x
x = 16,549,781,898.23/129,895.08 - Step 6: Final answer
x = 127,408.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.