Finding the Fourth Proportional to 143,965.18, 198,671.84 and 80,302.96
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Solution
The fourth proportional to 143,965.18, 198,671.84 and 80,302.96 is: 110,818.02
Step by Step Solution
- Step 1: Write the proportion equation
143,965.18 : 198,671.84 = 80,302.96 : x - Step 2: Convert to fraction form
143,965.18/198,671.84 = 80,302.96/x - Step 3: Cross multiply
143,965.18x = 198,671.84 × 80,302.96 - Step 4: Simplify right side
143,965.18x = 15,953,936,820.65 - Step 5: Solve for x
x = 15,953,936,820.65/143,965.18 - Step 6: Final answer
x = 110,818.02
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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.