Finding the Fourth Proportional to 163,572.13, 225,728.26 and 90,975.68
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Solution
The fourth proportional to 163,572.13, 225,728.26 and 90,975.68 is: 125,545.73
Step by Step Solution
- Step 1: Write the proportion equation
163,572.13 : 225,728.26 = 90,975.68 : x - Step 2: Convert to fraction form
163,572.13/225,728.26 = 90,975.68/x - Step 3: Cross multiply
163,572.13x = 225,728.26 × 90,975.68 - Step 4: Simplify right side
163,572.13x = 20,535,781,948.72 - Step 5: Solve for x
x = 20,535,781,948.72/163,572.13 - Step 6: Final answer
x = 125,545.73
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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.