Finding the Fourth Proportional to 113,289.94, 156,295.87 and 64,865.99
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Solution
The fourth proportional to 113,289.94, 156,295.87 and 64,865.99 is: 89,489.73
Step by Step Solution
- Step 1: Write the proportion equation
113,289.94 : 156,295.87 = 64,865.99 : x - Step 2: Convert to fraction form
113,289.94/156,295.87 = 64,865.99/x - Step 3: Cross multiply
113,289.94x = 156,295.87 × 64,865.99 - Step 4: Simplify right side
113,289.94x = 10,138,286,340.46 - Step 5: Solve for x
x = 10,138,286,340.46/113,289.94 - Step 6: Final answer
x = 89,489.73
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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.