Finding the Fourth Proportional to 136,154.61, 204,204.92 and 129,403.41
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Solution
The fourth proportional to 136,154.61, 204,204.92 and 129,403.41 is: 194,079.45
Step by Step Solution
- Step 1: Write the proportion equation
136,154.61 : 204,204.92 = 129,403.41 : x - Step 2: Convert to fraction form
136,154.61/204,204.92 = 129,403.41/x - Step 3: Cross multiply
136,154.61x = 204,204.92 × 129,403.41 - Step 4: Simplify right side
136,154.61x = 26,424,812,339.76 - Step 5: Solve for x
x = 26,424,812,339.76/136,154.61 - Step 6: Final answer
x = 194,079.45
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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.