Finding the Fourth Proportional to 141,726.03, 195,582.38 and 78,063.99
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Solution
The fourth proportional to 141,726.03, 195,582.38 and 78,063.99 is: 107,728.56
Step by Step Solution
- Step 1: Write the proportion equation
141,726.03 : 195,582.38 = 78,063.99 : x - Step 2: Convert to fraction form
141,726.03/195,582.38 = 78,063.99/x - Step 3: Cross multiply
141,726.03x = 195,582.38 × 78,063.99 - Step 4: Simplify right side
141,726.03x = 15,267,940,566.18 - Step 5: Solve for x
x = 15,267,940,566.18/141,726.03 - Step 6: Final answer
x = 107,728.56
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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.