Finding the Fourth Proportional to 125,477.08, 173,082.21 and 74,456.17
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Solution
The fourth proportional to 125,477.08, 173,082.21 and 74,456.17 is: 102,704.32
Step by Step Solution
- Step 1: Write the proportion equation
125,477.08 : 173,082.21 = 74,456.17 : x - Step 2: Convert to fraction form
125,477.08/173,082.21 = 74,456.17/x - Step 3: Cross multiply
125,477.08x = 173,082.21 × 74,456.17 - Step 4: Simplify right side
125,477.08x = 12,887,038,451.74 - Step 5: Solve for x
x = 12,887,038,451.74/125,477.08 - Step 6: Final answer
x = 102,704.32
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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.