Finding the Fourth Proportional to 106,019.62, 146,305.20 and 58,272.96
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Solution
The fourth proportional to 106,019.62, 146,305.20 and 58,272.96 is: 80,415.65
Step by Step Solution
- Step 1: Write the proportion equation
106,019.62 : 146,305.20 = 58,272.96 : x - Step 2: Convert to fraction form
106,019.62/146,305.20 = 58,272.96/x - Step 3: Cross multiply
106,019.62x = 146,305.20 × 58,272.96 - Step 4: Simplify right side
106,019.62x = 8,525,637,067.39 - Step 5: Solve for x
x = 8,525,637,067.39/106,019.62 - Step 6: Final answer
x = 80,415.65
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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.