Finding the Fourth Proportional to 103,810.26, 143,252.86 and 58,490.92
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Solution
The fourth proportional to 103,810.26, 143,252.86 and 58,490.92 is: 80,714.48
Step by Step Solution
- Step 1: Write the proportion equation
103,810.26 : 143,252.86 = 58,490.92 : x - Step 2: Convert to fraction form
103,810.26/143,252.86 = 58,490.92/x - Step 3: Cross multiply
103,810.26x = 143,252.86 × 58,490.92 - Step 4: Simplify right side
103,810.26x = 8,378,991,574.03 - Step 5: Solve for x
x = 8,378,991,574.03/103,810.26 - Step 6: Final answer
x = 80,714.48
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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.