Finding the Fourth Proportional to 113,719.05, 170,578.58 and 104,861.70
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Solution
The fourth proportional to 113,719.05, 170,578.58 and 104,861.70 is: 157,292.55
Step by Step Solution
- Step 1: Write the proportion equation
113,719.05 : 170,578.58 = 104,861.70 : x - Step 2: Convert to fraction form
113,719.05/170,578.58 = 104,861.70/x - Step 3: Cross multiply
113,719.05x = 170,578.58 × 104,861.70 - Step 4: Simplify right side
113,719.05x = 17,887,159,358.08 - Step 5: Solve for x
x = 17,887,159,358.08/113,719.05 - Step 6: Final answer
x = 157,292.55
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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.