Finding the Fourth Proportional to 114,490.20, 171,735.30 and 84,965.70
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Solution
The fourth proportional to 114,490.20, 171,735.30 and 84,965.70 is: 127,448.55
Step by Step Solution
- Step 1: Write the proportion equation
114,490.20 : 171,735.30 = 84,965.70 : x - Step 2: Convert to fraction form
114,490.20/171,735.30 = 84,965.70/x - Step 3: Cross multiply
114,490.20x = 171,735.30 × 84,965.70 - Step 4: Simplify right side
114,490.20x = 14,591,609,979.21 - Step 5: Solve for x
x = 14,591,609,979.21/114,490.20 - Step 6: Final answer
x = 127,448.55
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1.5x scale
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.