Finding the Fourth Proportional to 137,090.08, 189,169.68 and 76,654.48
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Solution
The fourth proportional to 137,090.08, 189,169.68 and 76,654.48 is: 105,775.00
Step by Step Solution
- Step 1: Write the proportion equation
137,090.08 : 189,169.68 = 76,654.48 : x - Step 2: Convert to fraction form
137,090.08/189,169.68 = 76,654.48/x - Step 3: Cross multiply
137,090.08x = 189,169.68 × 76,654.48 - Step 4: Simplify right side
137,090.08x = 14,500,703,452.17 - Step 5: Solve for x
x = 14,500,703,452.17/137,090.08 - Step 6: Final answer
x = 105,775.00
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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.