Finding the Fourth Proportional to 143,886.32, 215,644.78 and 68,894.09
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Solution
The fourth proportional to 143,886.32, 215,644.78 and 68,894.09 is: 103,252.70
Step by Step Solution
- Step 1: Write the proportion equation
143,886.32 : 215,644.78 = 68,894.09 : x - Step 2: Convert to fraction form
143,886.32/215,644.78 = 68,894.09/x - Step 3: Cross multiply
143,886.32x = 215,644.78 × 68,894.09 - Step 4: Simplify right side
143,886.32x = 14,856,651,910.91 - Step 5: Solve for x
x = 14,856,651,910.91/143,886.32 - Step 6: Final answer
x = 103,252.70
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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.