Finding the Fourth Proportional to 141,216.23, 194,877.76 and 76,684.95
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Solution
The fourth proportional to 141,216.23, 194,877.76 and 76,684.95 is: 105,824.88
Step by Step Solution
- Step 1: Write the proportion equation
141,216.23 : 194,877.76 = 76,684.95 : x - Step 2: Convert to fraction form
141,216.23/194,877.76 = 76,684.95/x - Step 3: Cross multiply
141,216.23x = 194,877.76 × 76,684.95 - Step 4: Simplify right side
141,216.23x = 14,944,191,090.00 - Step 5: Solve for x
x = 14,944,191,090.00/141,216.23 - Step 6: Final answer
x = 105,824.88
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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.