Finding the Fourth Proportional to 145,702.15, 218,497.87 and 69,722.70
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Solution
The fourth proportional to 145,702.15, 218,497.87 and 69,722.70 is: 104,557.56
Step by Step Solution
- Step 1: Write the proportion equation
145,702.15 : 218,497.87 = 69,722.70 : x - Step 2: Convert to fraction form
145,702.15/218,497.87 = 69,722.70/x - Step 3: Cross multiply
145,702.15x = 218,497.87 × 69,722.70 - Step 4: Simplify right side
145,702.15x = 15,234,261,440.65 - Step 5: Solve for x
x = 15,234,261,440.65/145,702.15 - Step 6: Final answer
x = 104,557.56
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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.