Finding the Fourth Proportional to 112,960.98, 155,874.58 and 67,637.84
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Solution
The fourth proportional to 112,960.98, 155,874.58 and 67,637.84 is: 93,333.28
Step by Step Solution
- Step 1: Write the proportion equation
112,960.98 : 155,874.58 = 67,637.84 : x - Step 2: Convert to fraction form
112,960.98/155,874.58 = 67,637.84/x - Step 3: Cross multiply
112,960.98x = 155,874.58 × 67,637.84 - Step 4: Simplify right side
112,960.98x = 10,543,018,953.64 - Step 5: Solve for x
x = 10,543,018,953.64/112,960.98 - Step 6: Final answer
x = 93,333.28
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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.