Finding the Fourth Proportional to 136,661.63, 188,337.67 and 98,354.68
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Solution
The fourth proportional to 136,661.63, 188,337.67 and 98,354.68 is: 135,545.66
Step by Step Solution
- Step 1: Write the proportion equation
136,661.63 : 188,337.67 = 98,354.68 : x - Step 2: Convert to fraction form
136,661.63/188,337.67 = 98,354.68/x - Step 3: Cross multiply
136,661.63x = 188,337.67 × 98,354.68 - Step 4: Simplify right side
136,661.63x = 18,523,890,548.06 - Step 5: Solve for x
x = 18,523,890,548.06/136,661.63 - Step 6: Final answer
x = 135,545.66
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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.