Finding the Fourth Proportional to 121,700.80, 182,551.20 and 117,035.20
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Solution
The fourth proportional to 121,700.80, 182,551.20 and 117,035.20 is: 175,552.80
Step by Step Solution
- Step 1: Write the proportion equation
121,700.80 : 182,551.20 = 117,035.20 : x - Step 2: Convert to fraction form
121,700.80/182,551.20 = 117,035.20/x - Step 3: Cross multiply
121,700.80x = 182,551.20 × 117,035.20 - Step 4: Simplify right side
121,700.80x = 21,364,916,202.24 - Step 5: Solve for x
x = 21,364,916,202.24/121,700.80 - Step 6: Final answer
x = 175,552.80
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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.