Finding the Fourth Proportional to 156,577.76, 216,075.60 and 84,959.36
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Solution
The fourth proportional to 156,577.76, 216,075.60 and 84,959.36 is: 117,242.99
Step by Step Solution
- Step 1: Write the proportion equation
156,577.76 : 216,075.60 = 84,959.36 : x - Step 2: Convert to fraction form
156,577.76/216,075.60 = 84,959.36/x - Step 3: Cross multiply
156,577.76x = 216,075.60 × 84,959.36 - Step 4: Simplify right side
156,577.76x = 18,357,644,687.62 - Step 5: Solve for x
x = 18,357,644,687.62/156,577.76 - Step 6: Final answer
x = 117,242.99
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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.