Finding the Fourth Proportional to 103,135.36, 154,713.84 and 43,977.28
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Solution
The fourth proportional to 103,135.36, 154,713.84 and 43,977.28 is: 65,970.53
Step by Step Solution
- Step 1: Write the proportion equation
103,135.36 : 154,713.84 = 43,977.28 : x - Step 2: Convert to fraction form
103,135.36/154,713.84 = 43,977.28/x - Step 3: Cross multiply
103,135.36x = 154,713.84 × 43,977.28 - Step 4: Simplify right side
103,135.36x = 6,803,893,861.56 - Step 5: Solve for x
x = 6,803,893,861.56/103,135.36 - Step 6: Final answer
x = 65,970.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.