Finding the Fourth Proportional to 183,985.72, 253,907.48 and 103,412.99
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Solution
The fourth proportional to 183,985.72, 253,907.48 and 103,412.99 is: 142,713.97
Step by Step Solution
- Step 1: Write the proportion equation
183,985.72 : 253,907.48 = 103,412.99 : x - Step 2: Convert to fraction form
183,985.72/253,907.48 = 103,412.99/x - Step 3: Cross multiply
183,985.72x = 253,907.48 × 103,412.99 - Step 4: Simplify right side
183,985.72x = 26,257,332,583.47 - Step 5: Solve for x
x = 26,257,332,583.47/183,985.72 - Step 6: Final answer
x = 142,713.97
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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.