Finding the Fourth Proportional to 131,797.68, 181,880.89 and 71,368.80
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Solution
The fourth proportional to 131,797.68, 181,880.89 and 71,368.80 is: 98,488.99
Step by Step Solution
- Step 1: Write the proportion equation
131,797.68 : 181,880.89 = 71,368.80 : x - Step 2: Convert to fraction form
131,797.68/181,880.89 = 71,368.80/x - Step 3: Cross multiply
131,797.68x = 181,880.89 × 71,368.80 - Step 4: Simplify right side
131,797.68x = 12,980,620,862.23 - Step 5: Solve for x
x = 12,980,620,862.23/131,797.68 - Step 6: Final answer
x = 98,488.99
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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.