Finding the Fourth Proportional to 113,122.12, 156,108.84 and 62,821.12
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Solution
The fourth proportional to 113,122.12, 156,108.84 and 62,821.12 is: 86,693.32
Step by Step Solution
- Step 1: Write the proportion equation
113,122.12 : 156,108.84 = 62,821.12 : x - Step 2: Convert to fraction form
113,122.12/156,108.84 = 62,821.12/x - Step 3: Cross multiply
113,122.12x = 156,108.84 × 62,821.12 - Step 4: Simplify right side
113,122.12x = 9,806,931,780.43 - Step 5: Solve for x
x = 9,806,931,780.43/113,122.12 - Step 6: Final answer
x = 86,693.32
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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.