Finding the Fourth Proportional to 124,913.25, 172,382.72 and 68,325.84
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Solution
The fourth proportional to 124,913.25, 172,382.72 and 68,325.84 is: 94,290.99
Step by Step Solution
- Step 1: Write the proportion equation
124,913.25 : 172,382.72 = 68,325.84 : x - Step 2: Convert to fraction form
124,913.25/172,382.72 = 68,325.84/x - Step 3: Cross multiply
124,913.25x = 172,382.72 × 68,325.84 - Step 4: Simplify right side
124,913.25x = 11,778,193,803.86 - Step 5: Solve for x
x = 11,778,193,803.86/124,913.25 - Step 6: Final answer
x = 94,290.99
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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.