Finding the Fourth Proportional to 155,708.16, 214,877.26 and 84,088.18
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Solution
The fourth proportional to 155,708.16, 214,877.26 and 84,088.18 is: 116,041.69
Step by Step Solution
- Step 1: Write the proportion equation
155,708.16 : 214,877.26 = 84,088.18 : x - Step 2: Convert to fraction form
155,708.16/214,877.26 = 84,088.18/x - Step 3: Cross multiply
155,708.16x = 214,877.26 × 84,088.18 - Step 4: Simplify right side
155,708.16x = 18,068,637,716.79 - Step 5: Solve for x
x = 18,068,637,716.79/155,708.16 - Step 6: Final answer
x = 116,041.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.