Finding the Fourth Proportional to 137,246.40, 205,869.60 and 115,595.10
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Solution
The fourth proportional to 137,246.40, 205,869.60 and 115,595.10 is: 173,392.65
Step by Step Solution
- Step 1: Write the proportion equation
137,246.40 : 205,869.60 = 115,595.10 : x - Step 2: Convert to fraction form
137,246.40/205,869.60 = 115,595.10/x - Step 3: Cross multiply
137,246.40x = 205,869.60 × 115,595.10 - Step 4: Simplify right side
137,246.40x = 23,797,516,998.96 - Step 5: Solve for x
x = 23,797,516,998.96/137,246.40 - Step 6: Final answer
x = 173,392.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.