Finding the Fourth Proportional to 84,176.92, 125,719.53 and 76,263.62
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Solution
The fourth proportional to 84,176.92, 125,719.53 and 76,263.62 is: 113,900.90
Step by Step Solution
- Step 1: Write the proportion equation
84,176.92 : 125,719.53 = 76,263.62 : x - Step 2: Convert to fraction form
84,176.92/125,719.53 = 76,263.62/x - Step 3: Cross multiply
84,176.92x = 125,719.53 × 76,263.62 - Step 4: Simplify right side
84,176.92x = 9,587,826,462.50 - Step 5: Solve for x
x = 9,587,826,462.50/84,176.92 - Step 6: Final answer
x = 113,900.90
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.