Finding the Fourth Proportional to 88,117.60, 132,370.80 and 84,812.80
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Solution
The fourth proportional to 88,117.60, 132,370.80 and 84,812.80 is: 127,406.31
Step by Step Solution
- Step 1: Write the proportion equation
88,117.60 : 132,370.80 = 84,812.80 : x - Step 2: Convert to fraction form
88,117.60/132,370.80 = 84,812.80/x - Step 3: Cross multiply
88,117.60x = 132,370.80 × 84,812.80 - Step 4: Simplify right side
88,117.60x = 11,226,738,186.24 - Step 5: Solve for x
x = 11,226,738,186.24/88,117.60 - Step 6: Final answer
x = 127,406.31
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1.5x scale
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.