Finding the Fourth Proportional to 156,915.94, 216,544.14 and 85,295.96
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Solution
The fourth proportional to 156,915.94, 216,544.14 and 85,295.96 is: 117,708.50
Step by Step Solution
- Step 1: Write the proportion equation
156,915.94 : 216,544.14 = 85,295.96 : x - Step 2: Convert to fraction form
156,915.94/216,544.14 = 85,295.96/x - Step 3: Cross multiply
156,915.94x = 216,544.14 × 85,295.96 - Step 4: Simplify right side
156,915.94x = 18,470,340,303.67 - Step 5: Solve for x
x = 18,470,340,303.67/156,915.94 - Step 6: Final answer
x = 117,708.50
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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.