Finding the Fourth Proportional to 148,660.92, 205,138.32 and 88,221.12
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Solution
The fourth proportional to 148,660.92, 205,138.32 and 88,221.12 is: 121,736.99
Step by Step Solution
- Step 1: Write the proportion equation
148,660.92 : 205,138.32 = 88,221.12 : x - Step 2: Convert to fraction form
148,660.92/205,138.32 = 88,221.12/x - Step 3: Cross multiply
148,660.92x = 205,138.32 × 88,221.12 - Step 4: Simplify right side
148,660.92x = 18,097,532,345.32 - Step 5: Solve for x
x = 18,097,532,345.32/148,660.92 - Step 6: Final answer
x = 121,736.99
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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.