Finding the Fourth Proportional to 127,442.60, 175,826.99 and 79,027.13
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Solution
The fourth proportional to 127,442.60, 175,826.99 and 79,027.13 is: 109,030.28
Step by Step Solution
- Step 1: Write the proportion equation
127,442.60 : 175,826.99 = 79,027.13 : x - Step 2: Convert to fraction form
127,442.60/175,826.99 = 79,027.13/x - Step 3: Cross multiply
127,442.60x = 175,826.99 × 79,027.13 - Step 4: Simplify right side
127,442.60x = 13,895,102,396.24 - Step 5: Solve for x
x = 13,895,102,396.24/127,442.60 - Step 6: Final answer
x = 109,030.28
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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.