Finding the Fourth Proportional to 132,985.18, 183,446.94 and 85,184.65
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Solution
The fourth proportional to 132,985.18, 183,446.94 and 85,184.65 is: 117,508.31
Step by Step Solution
- Step 1: Write the proportion equation
132,985.18 : 183,446.94 = 85,184.65 : x - Step 2: Convert to fraction form
132,985.18/183,446.94 = 85,184.65/x - Step 3: Cross multiply
132,985.18x = 183,446.94 × 85,184.65 - Step 4: Simplify right side
132,985.18x = 15,626,863,377.47 - Step 5: Solve for x
x = 15,626,863,377.47/132,985.18 - Step 6: Final answer
x = 117,508.31
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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.