Finding the Fourth Proportional to 193,135.79, 289,690.98 and 66,746.63
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Solution
The fourth proportional to 193,135.79, 289,690.98 and 66,746.63 is: 100,115.55
Step by Step Solution
- Step 1: Write the proportion equation
193,135.79 : 289,690.98 = 66,746.63 : x - Step 2: Convert to fraction form
193,135.79/289,690.98 = 66,746.63/x - Step 3: Cross multiply
193,135.79x = 289,690.98 × 66,746.63 - Step 4: Simplify right side
193,135.79x = 19,335,895,207.94 - Step 5: Solve for x
x = 19,335,895,207.94/193,135.79 - Step 6: Final answer
x = 100,115.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.