Finding the Fourth Proportional to 96,625.64, 133,138.98 and 89,976.68
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Solution
The fourth proportional to 96,625.64, 133,138.98 and 89,976.68 is: 123,977.48
Step by Step Solution
- Step 1: Write the proportion equation
96,625.64 : 133,138.98 = 89,976.68 : x - Step 2: Convert to fraction form
96,625.64/133,138.98 = 89,976.68/x - Step 3: Cross multiply
96,625.64x = 133,138.98 × 89,976.68 - Step 4: Simplify right side
96,625.64x = 11,979,403,398.99 - Step 5: Solve for x
x = 11,979,403,398.99/96,625.64 - Step 6: Final answer
x = 123,977.48
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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.