Finding the Fourth Proportional to 137,177.58, 189,312.42 and 76,744.62
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Solution
The fourth proportional to 137,177.58, 189,312.42 and 76,744.62 is: 105,911.69
Step by Step Solution
- Step 1: Write the proportion equation
137,177.58 : 189,312.42 = 76,744.62 : x - Step 2: Convert to fraction form
137,177.58/189,312.42 = 76,744.62/x - Step 3: Cross multiply
137,177.58x = 189,312.42 × 76,744.62 - Step 4: Simplify right side
137,177.58x = 14,528,709,734.18 - Step 5: Solve for x
x = 14,528,709,734.18/137,177.58 - Step 6: Final answer
x = 105,911.69
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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.