Finding the Fourth Proportional to 114,149.63, 157,539.80 and 66,404.99
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Solution
The fourth proportional to 114,149.63, 157,539.80 and 66,404.99 is: 91,646.63
Step by Step Solution
- Step 1: Write the proportion equation
114,149.63 : 157,539.80 = 66,404.99 : x - Step 2: Convert to fraction form
114,149.63/157,539.80 = 66,404.99/x - Step 3: Cross multiply
114,149.63x = 157,539.80 × 66,404.99 - Step 4: Simplify right side
114,149.63x = 10,461,428,843.60 - Step 5: Solve for x
x = 10,461,428,843.60/114,149.63 - Step 6: Final answer
x = 91,646.63
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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.