Finding the Fourth Proportional to 145,802.70, 201,211.98 and 85,367.68
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Solution
The fourth proportional to 145,802.70, 201,211.98 and 85,367.68 is: 117,809.90
Step by Step Solution
- Step 1: Write the proportion equation
145,802.70 : 201,211.98 = 85,367.68 : x - Step 2: Convert to fraction form
145,802.70/201,211.98 = 85,367.68/x - Step 3: Cross multiply
145,802.70x = 201,211.98 × 85,367.68 - Step 4: Simplify right side
145,802.70x = 17,177,000,995.48 - Step 5: Solve for x
x = 17,177,000,995.48/145,802.70 - Step 6: Final answer
x = 117,809.90
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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.