Finding the Fourth Proportional to 133,148.08, 183,745.74 and 72,720.46
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Solution
The fourth proportional to 133,148.08, 183,745.74 and 72,720.46 is: 100,354.99
Step by Step Solution
- Step 1: Write the proportion equation
133,148.08 : 183,745.74 = 72,720.46 : x - Step 2: Convert to fraction form
133,148.08/183,745.74 = 72,720.46/x - Step 3: Cross multiply
133,148.08x = 183,745.74 × 72,720.46 - Step 4: Simplify right side
133,148.08x = 13,362,074,735.84 - Step 5: Solve for x
x = 13,362,074,735.84/133,148.08 - Step 6: Final answer
x = 100,354.99
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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.