Finding the Fourth Proportional to 142,122.97, 213,071.99 and 53,366.59
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Solution
The fourth proportional to 142,122.97, 213,071.99 and 53,366.59 is: 80,007.65
Step by Step Solution
- Step 1: Write the proportion equation
142,122.97 : 213,071.99 = 53,366.59 : x - Step 2: Convert to fraction form
142,122.97/213,071.99 = 53,366.59/x - Step 3: Cross multiply
142,122.97x = 213,071.99 × 53,366.59 - Step 4: Simplify right side
142,122.97x = 11,370,925,530.81 - Step 5: Solve for x
x = 11,370,925,530.81/142,122.97 - Step 6: Final answer
x = 80,007.65
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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.