Finding the Fourth Proportional to 121,736.08, 168,103.51 and 75,873.99
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Solution
The fourth proportional to 121,736.08, 168,103.51 and 75,873.99 is: 104,773.25
Step by Step Solution
- Step 1: Write the proportion equation
121,736.08 : 168,103.51 = 75,873.99 : x - Step 2: Convert to fraction form
121,736.08/168,103.51 = 75,873.99/x - Step 3: Cross multiply
121,736.08x = 168,103.51 × 75,873.99 - Step 4: Simplify right side
121,736.08x = 12,754,684,904.20 - Step 5: Solve for x
x = 12,754,684,904.20/121,736.08 - Step 6: Final answer
x = 104,773.25
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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.