Finding the Fourth Proportional to 131,373.85, 181,300.95 and 74,035.99
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Solution
The fourth proportional to 131,373.85, 181,300.95 and 74,035.99 is: 102,172.50
Step by Step Solution
- Step 1: Write the proportion equation
131,373.85 : 181,300.95 = 74,035.99 : x - Step 2: Convert to fraction form
131,373.85/181,300.95 = 74,035.99/x - Step 3: Cross multiply
131,373.85x = 181,300.95 × 74,035.99 - Step 4: Simplify right side
131,373.85x = 13,422,795,321.19 - Step 5: Solve for x
x = 13,422,795,321.19/131,373.85 - Step 6: Final answer
x = 102,172.50
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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.