Finding the Fourth Proportional to 125,137.84, 172,690.50 and 68,549.44
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Solution
The fourth proportional to 125,137.84, 172,690.50 and 68,549.44 is: 94,598.38
Step by Step Solution
- Step 1: Write the proportion equation
125,137.84 : 172,690.50 = 68,549.44 : x - Step 2: Convert to fraction form
125,137.84/172,690.50 = 68,549.44/x - Step 3: Cross multiply
125,137.84x = 172,690.50 × 68,549.44 - Step 4: Simplify right side
125,137.84x = 11,837,837,068.32 - Step 5: Solve for x
x = 11,837,837,068.32/125,137.84 - Step 6: Final answer
x = 94,598.38
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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.