Finding the Fourth Proportional to 113,286.79, 156,331.68 and 62,299.09
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Solution
The fourth proportional to 113,286.79, 156,331.68 and 62,299.09 is: 85,970.49
Step by Step Solution
- Step 1: Write the proportion equation
113,286.79 : 156,331.68 = 62,299.09 : x - Step 2: Convert to fraction form
113,286.79/156,331.68 = 62,299.09/x - Step 3: Cross multiply
113,286.79x = 156,331.68 × 62,299.09 - Step 4: Simplify right side
113,286.79x = 9,739,321,402.17 - Step 5: Solve for x
x = 9,739,321,402.17/113,286.79 - Step 6: Final answer
x = 85,970.49
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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.