Finding the Fourth Proportional to 103,659.48, 143,048.35 and 58,337.41
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Solution
The fourth proportional to 103,659.48, 143,048.35 and 58,337.41 is: 80,504.65
Step by Step Solution
- Step 1: Write the proportion equation
103,659.48 : 143,048.35 = 58,337.41 : x - Step 2: Convert to fraction form
103,659.48/143,048.35 = 58,337.41/x - Step 3: Cross multiply
103,659.48x = 143,048.35 × 58,337.41 - Step 4: Simplify right side
103,659.48x = 8,345,070,243.77 - Step 5: Solve for x
x = 8,345,070,243.77/103,659.48 - Step 6: Final answer
x = 80,504.65
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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.