Finding the Fourth Proportional to 156,934.20, 216,544.14 and 103,240.92
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Solution
The fourth proportional to 156,934.20, 216,544.14 and 103,240.92 is: 142,455.99
Step by Step Solution
- Step 1: Write the proportion equation
156,934.20 : 216,544.14 = 103,240.92 : x - Step 2: Convert to fraction form
156,934.20/216,544.14 = 103,240.92/x - Step 3: Cross multiply
156,934.20x = 216,544.14 × 103,240.92 - Step 4: Simplify right side
156,934.20x = 22,356,216,234.21 - Step 5: Solve for x
x = 22,356,216,234.21/156,934.20 - Step 6: Final answer
x = 142,455.99
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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.