Finding the Fourth Proportional to 145,719.94, 201,088.11 and 81,187.66
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Solution
The fourth proportional to 145,719.94, 201,088.11 and 81,187.66 is: 112,035.96
Step by Step Solution
- Step 1: Write the proportion equation
145,719.94 : 201,088.11 = 81,187.66 : x - Step 2: Convert to fraction form
145,719.94/201,088.11 = 81,187.66/x - Step 3: Cross multiply
145,719.94x = 201,088.11 × 81,187.66 - Step 4: Simplify right side
145,719.94x = 16,325,873,104.72 - Step 5: Solve for x
x = 16,325,873,104.72/145,719.94 - Step 6: Final answer
x = 112,035.96
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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.