Finding the Fourth Proportional to 134,629.24, 185,780.76 and 74,199.70
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Solution
The fourth proportional to 134,629.24, 185,780.76 and 74,199.70 is: 102,391.40
Step by Step Solution
- Step 1: Write the proportion equation
134,629.24 : 185,780.76 = 74,199.70 : x - Step 2: Convert to fraction form
134,629.24/185,780.76 = 74,199.70/x - Step 3: Cross multiply
134,629.24x = 185,780.76 × 74,199.70 - Step 4: Simplify right side
134,629.24x = 13,784,876,657.77 - Step 5: Solve for x
x = 13,784,876,657.77/134,629.24 - Step 6: Final answer
x = 102,391.40
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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.