Finding the Fourth Proportional to 115,345.93, 159,206.39 and 65,074.09
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Solution
The fourth proportional to 115,345.93, 159,206.39 and 65,074.09 is: 89,818.61
Step by Step Solution
- Step 1: Write the proportion equation
115,345.93 : 159,206.39 = 65,074.09 : x - Step 2: Convert to fraction form
115,345.93/159,206.39 = 65,074.09/x - Step 3: Cross multiply
115,345.93x = 159,206.39 × 65,074.09 - Step 4: Simplify right side
115,345.93x = 10,360,210,951.44 - Step 5: Solve for x
x = 10,360,210,951.44/115,345.93 - Step 6: Final answer
x = 89,818.61
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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.