Finding the Fourth Proportional to 156,140.44, 215,461.26 and 88,173.95
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Solution
The fourth proportional to 156,140.44, 215,461.26 and 88,173.95 is: 121,672.96
Step by Step Solution
- Step 1: Write the proportion equation
156,140.44 : 215,461.26 = 88,173.95 : x - Step 2: Convert to fraction form
156,140.44/215,461.26 = 88,173.95/x - Step 3: Cross multiply
156,140.44x = 215,461.26 × 88,173.95 - Step 4: Simplify right side
156,140.44x = 18,998,069,386.65 - Step 5: Solve for x
x = 18,998,069,386.65/156,140.44 - Step 6: Final answer
x = 121,672.96
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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.