Finding the Fourth Proportional to 132,743.80, 183,136.98 and 87,448.60
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Solution
The fourth proportional to 132,743.80, 183,136.98 and 87,448.60 is: 120,646.48
Step by Step Solution
- Step 1: Write the proportion equation
132,743.80 : 183,136.98 = 87,448.60 : x - Step 2: Convert to fraction form
132,743.80/183,136.98 = 87,448.60/x - Step 3: Cross multiply
132,743.80x = 183,136.98 × 87,448.60 - Step 4: Simplify right side
132,743.80x = 16,015,072,509.23 - Step 5: Solve for x
x = 16,015,072,509.23/132,743.80 - Step 6: Final answer
x = 120,646.48
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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.