Finding the Fourth Proportional to 140,340.36, 193,670.28 and 76,684.08
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Solution
The fourth proportional to 140,340.36, 193,670.28 and 76,684.08 is: 105,824.35
Step by Step Solution
- Step 1: Write the proportion equation
140,340.36 : 193,670.28 = 76,684.08 : x - Step 2: Convert to fraction form
140,340.36/193,670.28 = 76,684.08/x - Step 3: Cross multiply
140,340.36x = 193,670.28 × 76,684.08 - Step 4: Simplify right side
140,340.36x = 14,851,427,245.14 - Step 5: Solve for x
x = 14,851,427,245.14/140,340.36 - Step 6: Final answer
x = 105,824.35
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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.