Finding the Fourth Proportional to 140,310.18, 193,566.36 and 83,688.75
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Solution
The fourth proportional to 140,310.18, 193,566.36 and 83,688.75 is: 115,453.68
Step by Step Solution
- Step 1: Write the proportion equation
140,310.18 : 193,566.36 = 83,688.75 : x - Step 2: Convert to fraction form
140,310.18/193,566.36 = 83,688.75/x - Step 3: Cross multiply
140,310.18x = 193,566.36 × 83,688.75 - Step 4: Simplify right side
140,310.18x = 16,199,326,710.45 - Step 5: Solve for x
x = 16,199,326,710.45/140,310.18 - Step 6: Final answer
x = 115,453.68
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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.