Finding the Fourth Proportional to 160,799.55, 221,916.99 and 89,202.63
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Solution
The fourth proportional to 160,799.55, 221,916.99 and 89,202.63 is: 123,107.18
Step by Step Solution
- Step 1: Write the proportion equation
160,799.55 : 221,916.99 = 89,202.63 : x - Step 2: Convert to fraction form
160,799.55/221,916.99 = 89,202.63/x - Step 3: Cross multiply
160,799.55x = 221,916.99 × 89,202.63 - Step 4: Simplify right side
160,799.55x = 19,795,579,149.68 - Step 5: Solve for x
x = 19,795,579,149.68/160,799.55 - Step 6: Final answer
x = 123,107.18
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1.5x scale
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.