Finding the Fourth Proportional to 158,472.09, 218,691.06 and 85,877.00
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Solution
The fourth proportional to 158,472.09, 218,691.06 and 85,877.00 is: 118,510.02
Step by Step Solution
- Step 1: Write the proportion equation
158,472.09 : 218,691.06 = 85,877.00 : x - Step 2: Convert to fraction form
158,472.09/218,691.06 = 85,877.00/x - Step 3: Cross multiply
158,472.09x = 218,691.06 × 85,877.00 - Step 4: Simplify right side
158,472.09x = 18,780,531,339.53 - Step 5: Solve for x
x = 18,780,531,339.53/158,472.09 - Step 6: Final answer
x = 118,510.02
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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.