Finding the Fourth Proportional to 107,252.80, 160,879.20 and 102,702.40
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Solution
The fourth proportional to 107,252.80, 160,879.20 and 102,702.40 is: 154,053.60
Step by Step Solution
- Step 1: Write the proportion equation
107,252.80 : 160,879.20 = 102,702.40 : x - Step 2: Convert to fraction form
107,252.80/160,879.20 = 102,702.40/x - Step 3: Cross multiply
107,252.80x = 160,879.20 × 102,702.40 - Step 4: Simplify right side
107,252.80x = 16,522,679,950.08 - Step 5: Solve for x
x = 16,522,679,950.08/107,252.80 - Step 6: Final answer
x = 154,053.60
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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.