Finding the Fourth Proportional to 119,977.92, 165,529.44 and 77,590.08
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Solution
The fourth proportional to 119,977.92, 165,529.44 and 77,590.08 is: 107,048.38
Step by Step Solution
- Step 1: Write the proportion equation
119,977.92 : 165,529.44 = 77,590.08 : x - Step 2: Convert to fraction form
119,977.92/165,529.44 = 77,590.08/x - Step 3: Cross multiply
119,977.92x = 165,529.44 × 77,590.08 - Step 4: Simplify right side
119,977.92x = 12,843,442,491.96 - Step 5: Solve for x
x = 12,843,442,491.96/119,977.92 - Step 6: Final answer
x = 107,048.38
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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.