Finding the Fourth Proportional to 103,037.22, 142,193.70 and 57,718.53
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Solution
The fourth proportional to 103,037.22, 142,193.70 and 57,718.53 is: 79,652.88
Step by Step Solution
- Step 1: Write the proportion equation
103,037.22 : 142,193.70 = 57,718.53 : x - Step 2: Convert to fraction form
103,037.22/142,193.70 = 57,718.53/x - Step 3: Cross multiply
103,037.22x = 142,193.70 × 57,718.53 - Step 4: Simplify right side
103,037.22x = 8,207,211,339.26 - Step 5: Solve for x
x = 8,207,211,339.26/103,037.22 - Step 6: Final answer
x = 79,652.88
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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.