Finding the Fourth Proportional to 140,110.32, 193,368.96 and 79,690.08
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Solution
The fourth proportional to 140,110.32, 193,368.96 and 79,690.08 is: 109,981.82
Step by Step Solution
- Step 1: Write the proportion equation
140,110.32 : 193,368.96 = 79,690.08 : x - Step 2: Convert to fraction form
140,110.32/193,368.96 = 79,690.08/x - Step 3: Cross multiply
140,110.32x = 193,368.96 × 79,690.08 - Step 4: Simplify right side
140,110.32x = 15,409,587,891.92 - Step 5: Solve for x
x = 15,409,587,891.92/140,110.32 - Step 6: Final answer
x = 109,981.82
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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.