Finding the Fourth Proportional to 161,440.04, 242,157.36 and 72,630.68
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Solution
The fourth proportional to 161,440.04, 242,157.36 and 72,630.68 is: 108,944.81
Step by Step Solution
- Step 1: Write the proportion equation
161,440.04 : 242,157.36 = 72,630.68 : x - Step 2: Convert to fraction form
161,440.04/242,157.36 = 72,630.68/x - Step 3: Cross multiply
161,440.04x = 242,157.36 × 72,630.68 - Step 4: Simplify right side
161,440.04x = 17,588,053,723.80 - Step 5: Solve for x
x = 17,588,053,723.80/161,440.04 - Step 6: Final answer
x = 108,944.81
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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.