Finding the Fourth Proportional to 135,977.28, 203,994.72 and 42,490.08
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Solution
The fourth proportional to 135,977.28, 203,994.72 and 42,490.08 is: 63,744.12
Step by Step Solution
- Step 1: Write the proportion equation
135,977.28 : 203,994.72 = 42,490.08 : x - Step 2: Convert to fraction form
135,977.28/203,994.72 = 42,490.08/x - Step 3: Cross multiply
135,977.28x = 203,994.72 × 42,490.08 - Step 4: Simplify right side
135,977.28x = 8,667,751,972.38 - Step 5: Solve for x
x = 8,667,751,972.38/135,977.28 - Step 6: Final answer
x = 63,744.12
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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.