Finding the Fourth Proportional to 137,176.03, 189,310.28 and 76,743.07
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Solution
The fourth proportional to 137,176.03, 189,310.28 and 76,743.07 is: 105,909.55
Step by Step Solution
- Step 1: Write the proportion equation
137,176.03 : 189,310.28 = 76,743.07 : x - Step 2: Convert to fraction form
137,176.03/189,310.28 = 76,743.07/x - Step 3: Cross multiply
137,176.03x = 189,310.28 × 76,743.07 - Step 4: Simplify right side
137,176.03x = 14,528,252,114.54 - Step 5: Solve for x
x = 14,528,252,114.54/137,176.03 - Step 6: Final answer
x = 105,909.55
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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.