Finding the Fourth Proportional to 113,418.24, 156,435.84 and 83,212.80
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Solution
The fourth proportional to 113,418.24, 156,435.84 and 83,212.80 is: 114,773.99
Step by Step Solution
- Step 1: Write the proportion equation
113,418.24 : 156,435.84 = 83,212.80 : x - Step 2: Convert to fraction form
113,418.24/156,435.84 = 83,212.80/x - Step 3: Cross multiply
113,418.24x = 156,435.84 × 83,212.80 - Step 4: Simplify right side
113,418.24x = 13,017,464,266.75 - Step 5: Solve for x
x = 13,017,464,266.75/113,418.24 - Step 6: Final answer
x = 114,773.99
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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.