Finding the Fourth Proportional to 109,157.13, 163,677.84 and 67,056.48
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Solution
The fourth proportional to 109,157.13, 163,677.84 and 67,056.48 is: 100,549.18
Step by Step Solution
- Step 1: Write the proportion equation
109,157.13 : 163,677.84 = 67,056.48 : x - Step 2: Convert to fraction form
109,157.13/163,677.84 = 67,056.48/x - Step 3: Cross multiply
109,157.13x = 163,677.84 × 67,056.48 - Step 4: Simplify right side
109,157.13x = 10,975,659,804.40 - Step 5: Solve for x
x = 10,975,659,804.40/109,157.13 - Step 6: Final answer
x = 100,549.18
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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.