Finding the Fourth Proportional to 137,717.60, 207,013.80 and 129,844.40
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Solution
The fourth proportional to 137,717.60, 207,013.80 and 129,844.40 is: 195,178.99
Step by Step Solution
- Step 1: Write the proportion equation
137,717.60 : 207,013.80 = 129,844.40 : x - Step 2: Convert to fraction form
137,717.60/207,013.80 = 129,844.40/x - Step 3: Cross multiply
137,717.60x = 207,013.80 × 129,844.40 - Step 4: Simplify right side
137,717.60x = 26,879,582,652.72 - Step 5: Solve for x
x = 26,879,582,652.72/137,717.60 - Step 6: Final answer
x = 195,178.99
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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.