Finding the Fourth Proportional to 137,585.12, 189,894.68 and 89,246.96
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Solution
The fourth proportional to 137,585.12, 189,894.68 and 89,246.96 is: 123,178.46
Step by Step Solution
- Step 1: Write the proportion equation
137,585.12 : 189,894.68 = 89,246.96 : x - Step 2: Convert to fraction form
137,585.12/189,894.68 = 89,246.96/x - Step 3: Cross multiply
137,585.12x = 189,894.68 × 89,246.96 - Step 4: Simplify right side
137,585.12x = 16,947,522,910.17 - Step 5: Solve for x
x = 16,947,522,910.17/137,585.12 - Step 6: Final answer
x = 123,178.46
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1.5x scale
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.