Finding the Fourth Proportional to 106,125.93, 158,964.26 and 72,689.13
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Solution
The fourth proportional to 106,125.93, 158,964.26 and 72,689.13 is: 108,879.83
Step by Step Solution
- Step 1: Write the proportion equation
106,125.93 : 158,964.26 = 72,689.13 : x - Step 2: Convert to fraction form
106,125.93/158,964.26 = 72,689.13/x - Step 3: Cross multiply
106,125.93x = 158,964.26 × 72,689.13 - Step 4: Simplify right side
106,125.93x = 11,554,973,397.05 - Step 5: Solve for x
x = 11,554,973,397.05/106,125.93 - Step 6: Final answer
x = 108,879.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.