Finding the Fourth Proportional to 156,877.02, 216,491.67 and 85,257.09
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Solution
The fourth proportional to 156,877.02, 216,491.67 and 85,257.09 is: 117,655.54
Step by Step Solution
- Step 1: Write the proportion equation
156,877.02 : 216,491.67 = 85,257.09 : x - Step 2: Convert to fraction form
156,877.02/216,491.67 = 85,257.09/x - Step 3: Cross multiply
156,877.02x = 216,491.67 × 85,257.09 - Step 4: Simplify right side
156,877.02x = 18,457,449,793.44 - Step 5: Solve for x
x = 18,457,449,793.44/156,877.02 - Step 6: Final answer
x = 117,655.54
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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.