Finding the Fourth Proportional to 115,988.76, 160,056.91 and 68,232.88
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Solution
The fourth proportional to 115,988.76, 160,056.91 and 68,232.88 is: 94,156.92
Step by Step Solution
- Step 1: Write the proportion equation
115,988.76 : 160,056.91 = 68,232.88 : x - Step 2: Convert to fraction form
115,988.76/160,056.91 = 68,232.88/x - Step 3: Cross multiply
115,988.76x = 160,056.91 × 68,232.88 - Step 4: Simplify right side
115,988.76x = 10,921,144,218.56 - Step 5: Solve for x
x = 10,921,144,218.56/115,988.76 - Step 6: Final answer
x = 94,156.92
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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.