Finding the Fourth Proportional to 124,838.18, 172,276.68 and 68,249.55
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Solution
The fourth proportional to 124,838.18, 172,276.68 and 68,249.55 is: 94,184.38
Step by Step Solution
- Step 1: Write the proportion equation
124,838.18 : 172,276.68 = 68,249.55 : x - Step 2: Convert to fraction form
124,838.18/172,276.68 = 68,249.55/x - Step 3: Cross multiply
124,838.18x = 172,276.68 × 68,249.55 - Step 4: Simplify right side
124,838.18x = 11,757,805,885.49 - Step 5: Solve for x
x = 11,757,805,885.49/124,838.18 - Step 6: Final answer
x = 94,184.38
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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.