Finding the Fourth Proportional to 156,752.73, 216,320.36 and 85,134.15
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Solution
The fourth proportional to 156,752.73, 216,320.36 and 85,134.15 is: 117,485.99
Step by Step Solution
- Step 1: Write the proportion equation
156,752.73 : 216,320.36 = 85,134.15 : x - Step 2: Convert to fraction form
156,752.73/216,320.36 = 85,134.15/x - Step 3: Cross multiply
156,752.73x = 216,320.36 × 85,134.15 - Step 4: Simplify right side
156,752.73x = 18,416,249,550.62 - Step 5: Solve for x
x = 18,416,249,550.62/156,752.73 - Step 6: Final answer
x = 117,485.99
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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.