Finding the Fourth Proportional to 113,701.68, 156,907.98 and 63,400.68
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Solution
The fourth proportional to 113,701.68, 156,907.98 and 63,400.68 is: 87,492.75
Step by Step Solution
- Step 1: Write the proportion equation
113,701.68 : 156,907.98 = 63,400.68 : x - Step 2: Convert to fraction form
113,701.68/156,907.98 = 63,400.68/x - Step 3: Cross multiply
113,701.68x = 156,907.98 × 63,400.68 - Step 4: Simplify right side
113,701.68x = 9,948,072,629.43 - Step 5: Solve for x
x = 9,948,072,629.43/113,701.68 - Step 6: Final answer
x = 87,492.75
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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.