Finding the Fourth Proportional to 115,541.04, 159,439.14 and 67,138.68
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Solution
The fourth proportional to 115,541.04, 159,439.14 and 67,138.68 is: 92,647.02
Step by Step Solution
- Step 1: Write the proportion equation
115,541.04 : 159,439.14 = 67,138.68 : x - Step 2: Convert to fraction form
115,541.04/159,439.14 = 67,138.68/x - Step 3: Cross multiply
115,541.04x = 159,439.14 × 67,138.68 - Step 4: Simplify right side
115,541.04x = 10,704,533,399.94 - Step 5: Solve for x
x = 10,704,533,399.94/115,541.04 - Step 6: Final answer
x = 92,647.02
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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.