Finding the Fourth Proportional to 137,874.08, 206,986.12 and 117,228.80
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Solution
The fourth proportional to 137,874.08, 206,986.12 and 117,228.80 is: 175,991.99
Step by Step Solution
- Step 1: Write the proportion equation
137,874.08 : 206,986.12 = 117,228.80 : x - Step 2: Convert to fraction form
137,874.08/206,986.12 = 117,228.80/x - Step 3: Cross multiply
137,874.08x = 206,986.12 × 117,228.80 - Step 4: Simplify right side
137,874.08x = 24,264,734,688.65 - Step 5: Solve for x
x = 24,264,734,688.65/137,874.08 - Step 6: Final answer
x = 175,991.99
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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.