Finding the Fourth Proportional to 147,545.76, 203,628.92 and 90,218.68
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Solution
The fourth proportional to 147,545.76, 203,628.92 and 90,218.68 is: 124,511.42
Step by Step Solution
- Step 1: Write the proportion equation
147,545.76 : 203,628.92 = 90,218.68 : x - Step 2: Convert to fraction form
147,545.76/203,628.92 = 90,218.68/x - Step 3: Cross multiply
147,545.76x = 203,628.92 × 90,218.68 - Step 4: Simplify right side
147,545.76x = 18,371,132,372.23 - Step 5: Solve for x
x = 18,371,132,372.23/147,545.76 - Step 6: Final answer
x = 124,511.42
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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.