Finding the Fourth Proportional to 103,455.24, 155,171.18 and 28,586.07
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Solution
The fourth proportional to 103,455.24, 155,171.18 and 28,586.07 is: 42,875.88
Step by Step Solution
- Step 1: Write the proportion equation
103,455.24 : 155,171.18 = 28,586.07 : x - Step 2: Convert to fraction form
103,455.24/155,171.18 = 28,586.07/x - Step 3: Cross multiply
103,455.24x = 155,171.18 × 28,586.07 - Step 4: Simplify right side
103,455.24x = 4,435,734,070.53 - Step 5: Solve for x
x = 4,435,734,070.53/103,455.24 - Step 6: Final answer
x = 42,875.88
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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.