Finding the Fourth Proportional to 154,041.14, 212,572.62 and 84,187.68
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Solution
The fourth proportional to 154,041.14, 212,572.62 and 84,187.68 is: 116,176.73
Step by Step Solution
- Step 1: Write the proportion equation
154,041.14 : 212,572.62 = 84,187.68 : x - Step 2: Convert to fraction form
154,041.14/212,572.62 = 84,187.68/x - Step 3: Cross multiply
154,041.14x = 212,572.62 × 84,187.68 - Step 4: Simplify right side
154,041.14x = 17,895,995,709.32 - Step 5: Solve for x
x = 17,895,995,709.32/154,041.14 - Step 6: Final answer
x = 116,176.73
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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.