Finding the Fourth Proportional to 103,843.05, 143,303.97 and 58,521.74
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Solution
The fourth proportional to 103,843.05, 143,303.97 and 58,521.74 is: 80,760.32
Step by Step Solution
- Step 1: Write the proportion equation
103,843.05 : 143,303.97 = 58,521.74 : x - Step 2: Convert to fraction form
103,843.05/143,303.97 = 58,521.74/x - Step 3: Cross multiply
103,843.05x = 143,303.97 × 58,521.74 - Step 4: Simplify right side
103,843.05x = 8,386,397,673.31 - Step 5: Solve for x
x = 8,386,397,673.31/103,843.05 - Step 6: Final answer
x = 80,760.32
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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.