Finding the Fourth Proportional to 156,889.99, 216,506.88 and 85,270.44
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Solution
The fourth proportional to 156,889.99, 216,506.88 and 85,270.44 is: 117,672.50
Step by Step Solution
- Step 1: Write the proportion equation
156,889.99 : 216,506.88 = 85,270.44 : x - Step 2: Convert to fraction form
156,889.99/216,506.88 = 85,270.44/x - Step 3: Cross multiply
156,889.99x = 216,506.88 × 85,270.44 - Step 4: Simplify right side
156,889.99x = 18,461,636,920.63 - Step 5: Solve for x
x = 18,461,636,920.63/156,889.99 - Step 6: Final answer
x = 117,672.50
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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.