Finding the Fourth Proportional to 156,790.14, 216,400.71 and 102,247.63
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Solution
The fourth proportional to 156,790.14, 216,400.71 and 102,247.63 is: 141,121.50
Step by Step Solution
- Step 1: Write the proportion equation
156,790.14 : 216,400.71 = 102,247.63 : x - Step 2: Convert to fraction form
156,790.14/216,400.71 = 102,247.63/x - Step 3: Cross multiply
156,790.14x = 216,400.71 × 102,247.63 - Step 4: Simplify right side
156,790.14x = 22,126,459,570.24 - Step 5: Solve for x
x = 22,126,459,570.24/156,790.14 - Step 6: Final answer
x = 141,121.50
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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.