Finding the Fourth Proportional to 111,545.43, 153,958.11 and 63,825.09
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Solution
The fourth proportional to 111,545.43, 153,958.11 and 63,825.09 is: 88,093.17
Step by Step Solution
- Step 1: Write the proportion equation
111,545.43 : 153,958.11 = 63,825.09 : x - Step 2: Convert to fraction form
111,545.43/153,958.11 = 63,825.09/x - Step 3: Cross multiply
111,545.43x = 153,958.11 × 63,825.09 - Step 4: Simplify right side
111,545.43x = 9,826,390,226.98 - Step 5: Solve for x
x = 9,826,390,226.98/111,545.43 - Step 6: Final answer
x = 88,093.17
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1.5x scale
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.