Finding the Fourth Proportional to 112,685.70, 155,506.26 and 62,384.70
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Solution
The fourth proportional to 112,685.70, 155,506.26 and 62,384.70 is: 86,090.88
Step by Step Solution
- Step 1: Write the proportion equation
112,685.70 : 155,506.26 = 62,384.70 : x - Step 2: Convert to fraction form
112,685.70/155,506.26 = 62,384.70/x - Step 3: Cross multiply
112,685.70x = 155,506.26 × 62,384.70 - Step 4: Simplify right side
112,685.70x = 9,701,211,378.22 - Step 5: Solve for x
x = 9,701,211,378.22/112,685.70 - Step 6: Final answer
x = 86,090.88
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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.