Finding the Fourth Proportional to 103,920.52, 143,411.84 and 58,600.68
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Solution
The fourth proportional to 103,920.52, 143,411.84 and 58,600.68 is: 80,869.80
Step by Step Solution
- Step 1: Write the proportion equation
103,920.52 : 143,411.84 = 58,600.68 : x - Step 2: Convert to fraction form
103,920.52/143,411.84 = 58,600.68/x - Step 3: Cross multiply
103,920.52x = 143,411.84 × 58,600.68 - Step 4: Simplify right side
103,920.52x = 8,404,031,344.05 - Step 5: Solve for x
x = 8,404,031,344.05/103,920.52 - Step 6: Final answer
x = 80,869.80
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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.