Finding the Fourth Proportional to 103,410.21, 155,115.33 and 29,538.21
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Solution
The fourth proportional to 103,410.21, 155,115.33 and 29,538.21 is: 44,307.32
Step by Step Solution
- Step 1: Write the proportion equation
103,410.21 : 155,115.33 = 29,538.21 : x - Step 2: Convert to fraction form
103,410.21/155,115.33 = 29,538.21/x - Step 3: Cross multiply
103,410.21x = 155,115.33 × 29,538.21 - Step 4: Simplify right side
103,410.21x = 4,581,829,191.76 - Step 5: Solve for x
x = 4,581,829,191.76/103,410.21 - Step 6: Final answer
x = 44,307.32
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1.5x scale
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.