Finding the Fourth Proportional to 157,129.21, 235,592.39 and 67,230.59
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Solution
The fourth proportional to 157,129.21, 235,592.39 and 67,230.59 is: 100,802.49
Step by Step Solution
- Step 1: Write the proportion equation
157,129.21 : 235,592.39 = 67,230.59 : x - Step 2: Convert to fraction form
157,129.21/235,592.39 = 67,230.59/x - Step 3: Cross multiply
157,129.21x = 235,592.39 × 67,230.59 - Step 4: Simplify right side
157,129.21x = 15,839,015,379.21 - Step 5: Solve for x
x = 15,839,015,379.21/157,129.21 - Step 6: Final answer
x = 100,802.49
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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.