Finding the Fourth Proportional to 113,315.67, 156,366.09 and 65,572.11
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Solution
The fourth proportional to 113,315.67, 156,366.09 and 65,572.11 is: 90,483.99
Step by Step Solution
- Step 1: Write the proportion equation
113,315.67 : 156,366.09 = 65,572.11 : x - Step 2: Convert to fraction form
113,315.67/156,366.09 = 65,572.11/x - Step 3: Cross multiply
113,315.67x = 156,366.09 × 65,572.11 - Step 4: Simplify right side
113,315.67x = 10,253,254,453.75 - Step 5: Solve for x
x = 10,253,254,453.75/113,315.67 - Step 6: Final answer
x = 90,483.99
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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.