Finding the Fourth Proportional to 88,372.80, 132,364.80 and 76,708.80
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Solution
The fourth proportional to 88,372.80, 132,364.80 and 76,708.80 is: 114,894.46
Step by Step Solution
- Step 1: Write the proportion equation
88,372.80 : 132,364.80 = 76,708.80 : x - Step 2: Convert to fraction form
88,372.80/132,364.80 = 76,708.80/x - Step 3: Cross multiply
88,372.80x = 132,364.80 × 76,708.80 - Step 4: Simplify right side
88,372.80x = 10,153,544,970.24 - Step 5: Solve for x
x = 10,153,544,970.24/88,372.80 - Step 6: Final answer
x = 114,894.46
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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.