Finding the Fourth Proportional to 109,509.44, 151,122.96 and 61,762.68
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Solution
The fourth proportional to 109,509.44, 151,122.96 and 61,762.68 is: 85,232.46
Step by Step Solution
- Step 1: Write the proportion equation
109,509.44 : 151,122.96 = 61,762.68 : x - Step 2: Convert to fraction form
109,509.44/151,122.96 = 61,762.68/x - Step 3: Cross multiply
109,509.44x = 151,122.96 × 61,762.68 - Step 4: Simplify right side
109,509.44x = 9,333,759,019.13 - Step 5: Solve for x
x = 9,333,759,019.13/109,509.44 - Step 6: Final answer
x = 85,232.46
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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.