Finding the Fourth Proportional to 103,372.88, 155,101.19 and 70,073.96
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Solution
The fourth proportional to 103,372.88, 155,101.19 and 70,073.96 is: 105,139.32
Step by Step Solution
- Step 1: Write the proportion equation
103,372.88 : 155,101.19 = 70,073.96 : x - Step 2: Convert to fraction form
103,372.88/155,101.19 = 70,073.96/x - Step 3: Cross multiply
103,372.88x = 155,101.19 × 70,073.96 - Step 4: Simplify right side
103,372.88x = 10,868,553,458.14 - Step 5: Solve for x
x = 10,868,553,458.14/103,372.88 - Step 6: Final answer
x = 105,139.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.