Finding the Fourth Proportional to 124,840.08, 172,279.68 and 68,251.92
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Solution
The fourth proportional to 124,840.08, 172,279.68 and 68,251.92 is: 94,187.85
Step by Step Solution
- Step 1: Write the proportion equation
124,840.08 : 172,279.68 = 68,251.92 : x - Step 2: Convert to fraction form
124,840.08/172,279.68 = 68,251.92/x - Step 3: Cross multiply
124,840.08x = 172,279.68 × 68,251.92 - Step 4: Simplify right side
124,840.08x = 11,758,418,936.99 - Step 5: Solve for x
x = 11,758,418,936.99/124,840.08 - Step 6: Final answer
x = 94,187.85
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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.