Finding the Fourth Proportional to 156,748.57, 216,305.79 and 88,763.99
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Solution
The fourth proportional to 156,748.57, 216,305.79 and 88,763.99 is: 122,490.20
Step by Step Solution
- Step 1: Write the proportion equation
156,748.57 : 216,305.79 = 88,763.99 : x - Step 2: Convert to fraction form
156,748.57/216,305.79 = 88,763.99/x - Step 3: Cross multiply
156,748.57x = 216,305.79 × 88,763.99 - Step 4: Simplify right side
156,748.57x = 19,200,164,324.22 - Step 5: Solve for x
x = 19,200,164,324.22/156,748.57 - Step 6: Final answer
x = 122,490.20
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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.