Finding the Fourth Proportional to 103,562.35, 142,914.68 and 58,240.31
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Solution
The fourth proportional to 103,562.35, 142,914.68 and 58,240.31 is: 80,370.86
Step by Step Solution
- Step 1: Write the proportion equation
103,562.35 : 142,914.68 = 58,240.31 : x - Step 2: Convert to fraction form
103,562.35/142,914.68 = 58,240.31/x - Step 3: Cross multiply
103,562.35x = 142,914.68 × 58,240.31 - Step 4: Simplify right side
103,562.35x = 8,323,395,266.75 - Step 5: Solve for x
x = 8,323,395,266.75/103,562.35 - Step 6: Final answer
x = 80,370.86
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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.