Finding the Fourth Proportional to 124,794.92, 172,220.98 and 68,205.08
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Solution
The fourth proportional to 124,794.92, 172,220.98 and 68,205.08 is: 94,125.19
Step by Step Solution
- Step 1: Write the proportion equation
124,794.92 : 172,220.98 = 68,205.08 : x - Step 2: Convert to fraction form
124,794.92/172,220.98 = 68,205.08/x - Step 3: Cross multiply
124,794.92x = 172,220.98 × 68,205.08 - Step 4: Simplify right side
124,794.92x = 11,746,345,718.58 - Step 5: Solve for x
x = 11,746,345,718.58/124,794.92 - Step 6: Final answer
x = 94,125.19
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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.