Finding the Fourth Proportional to 96,786.47, 145,748.19 and 84,453.62
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Solution
The fourth proportional to 96,786.47, 145,748.19 and 84,453.62 is: 127,176.47
Step by Step Solution
- Step 1: Write the proportion equation
96,786.47 : 145,748.19 = 84,453.62 : x - Step 2: Convert to fraction form
96,786.47/145,748.19 = 84,453.62/x - Step 3: Cross multiply
96,786.47x = 145,748.19 × 84,453.62 - Step 4: Simplify right side
96,786.47x = 12,308,961,831.68 - Step 5: Solve for x
x = 12,308,961,831.68/96,786.47 - Step 6: Final answer
x = 127,176.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.