Finding the Fourth Proportional to 106,530.09, 159,856.19 and 43,338.54
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Solution
The fourth proportional to 106,530.09, 159,856.19 and 43,338.54 is: 65,032.65
Step by Step Solution
- Step 1: Write the proportion equation
106,530.09 : 159,856.19 = 43,338.54 : x - Step 2: Convert to fraction form
106,530.09/159,856.19 = 43,338.54/x - Step 3: Cross multiply
106,530.09x = 159,856.19 × 43,338.54 - Step 4: Simplify right side
106,530.09x = 6,927,933,667.87 - Step 5: Solve for x
x = 6,927,933,667.87/106,530.09 - Step 6: Final answer
x = 65,032.65
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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.