Finding the Fourth Proportional to 156,977.18, 235,460.55 and 68,230.79
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Solution
The fourth proportional to 156,977.18, 235,460.55 and 68,230.79 is: 102,343.92
Step by Step Solution
- Step 1: Write the proportion equation
156,977.18 : 235,460.55 = 68,230.79 : x - Step 2: Convert to fraction form
156,977.18/235,460.55 = 68,230.79/x - Step 3: Cross multiply
156,977.18x = 235,460.55 × 68,230.79 - Step 4: Simplify right side
156,977.18x = 16,065,659,340.33 - Step 5: Solve for x
x = 16,065,659,340.33/156,977.18 - Step 6: Final answer
x = 102,343.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.