Finding the Fourth Proportional to 132,986.16, 183,495.84 and 79,276.17
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Solution
The fourth proportional to 132,986.16, 183,495.84 and 79,276.17 is: 109,386.18
Step by Step Solution
- Step 1: Write the proportion equation
132,986.16 : 183,495.84 = 79,276.17 : x - Step 2: Convert to fraction form
132,986.16/183,495.84 = 79,276.17/x - Step 3: Cross multiply
132,986.16x = 183,495.84 × 79,276.17 - Step 4: Simplify right side
132,986.16x = 14,546,847,406.13 - Step 5: Solve for x
x = 14,546,847,406.13/132,986.16 - Step 6: Final answer
x = 109,386.18
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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.