Finding the Fourth Proportional to 140,384.62, 193,730.46 and 79,955.26
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Solution
The fourth proportional to 140,384.62, 193,730.46 and 79,955.26 is: 110,338.08
Step by Step Solution
- Step 1: Write the proportion equation
140,384.62 : 193,730.46 = 79,955.26 : x - Step 2: Convert to fraction form
140,384.62/193,730.46 = 79,955.26/x - Step 3: Cross multiply
140,384.62x = 193,730.46 × 79,955.26 - Step 4: Simplify right side
140,384.62x = 15,489,769,299.22 - Step 5: Solve for x
x = 15,489,769,299.22/140,384.62 - Step 6: Final answer
x = 110,338.08
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1.5x scale
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.