Finding the Fourth Proportional to 137,114.08, 189,202.80 and 76,678.48
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Solution
The fourth proportional to 137,114.08, 189,202.80 and 76,678.48 is: 105,808.12
Step by Step Solution
- Step 1: Write the proportion equation
137,114.08 : 189,202.80 = 76,678.48 : x - Step 2: Convert to fraction form
137,114.08/189,202.80 = 76,678.48/x - Step 3: Cross multiply
137,114.08x = 189,202.80 × 76,678.48 - Step 4: Simplify right side
137,114.08x = 14,507,783,115.74 - Step 5: Solve for x
x = 14,507,783,115.74/137,114.08 - Step 6: Final answer
x = 105,808.12
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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.