Finding the Fourth Proportional to 156,795.20, 216,163.12 and 107,735.32
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Solution
The fourth proportional to 156,795.20, 216,163.12 and 107,735.32 is: 148,527.52
Step by Step Solution
- Step 1: Write the proportion equation
156,795.20 : 216,163.12 = 107,735.32 : x - Step 2: Convert to fraction form
156,795.20/216,163.12 = 107,735.32/x - Step 3: Cross multiply
156,795.20x = 216,163.12 × 107,735.32 - Step 4: Simplify right side
156,795.20x = 23,288,402,905.40 - Step 5: Solve for x
x = 23,288,402,905.40/156,795.20 - Step 6: Final answer
x = 148,527.52
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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.