Finding the Fourth Proportional to 156,869.76, 216,469.44 and 93,181.44
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Solution
The fourth proportional to 156,869.76, 216,469.44 and 93,181.44 is: 128,583.95
Step by Step Solution
- Step 1: Write the proportion equation
156,869.76 : 216,469.44 = 93,181.44 : x - Step 2: Convert to fraction form
156,869.76/216,469.44 = 93,181.44/x - Step 3: Cross multiply
156,869.76x = 216,469.44 × 93,181.44 - Step 4: Simplify right side
156,869.76x = 20,170,934,135.19 - Step 5: Solve for x
x = 20,170,934,135.19/156,869.76 - Step 6: Final answer
x = 128,583.95
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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.