Finding the Fourth Proportional to 113,113.53, 156,024.94 and 69,486.99
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Solution
The fourth proportional to 113,113.53, 156,024.94 and 69,486.99 is: 95,847.98
Step by Step Solution
- Step 1: Write the proportion equation
113,113.53 : 156,024.94 = 69,486.99 : x - Step 2: Convert to fraction form
113,113.53/156,024.94 = 69,486.99/x - Step 3: Cross multiply
113,113.53x = 156,024.94 × 69,486.99 - Step 4: Simplify right side
113,113.53x = 10,841,703,445.53 - Step 5: Solve for x
x = 10,841,703,445.53/113,113.53 - Step 6: Final answer
x = 95,847.98
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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.