Finding the Fourth Proportional to 156,756.12, 216,198.36 and 103,096.26
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Solution
The fourth proportional to 156,756.12, 216,198.36 and 103,096.26 is: 142,190.57
Step by Step Solution
- Step 1: Write the proportion equation
156,756.12 : 216,198.36 = 103,096.26 : x - Step 2: Convert to fraction form
156,756.12/216,198.36 = 103,096.26/x - Step 3: Cross multiply
156,756.12x = 216,198.36 × 103,096.26 - Step 4: Simplify right side
156,756.12x = 22,289,242,334.13 - Step 5: Solve for x
x = 22,289,242,334.13/156,756.12 - Step 6: Final answer
x = 142,190.57
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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.