Finding the Fourth Proportional to 102,130.08, 153,121.32 and 68,767.44
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Solution
The fourth proportional to 102,130.08, 153,121.32 and 68,767.44 is: 103,101.47
Step by Step Solution
- Step 1: Write the proportion equation
102,130.08 : 153,121.32 = 68,767.44 : x - Step 2: Convert to fraction form
102,130.08/153,121.32 = 68,767.44/x - Step 3: Cross multiply
102,130.08x = 153,121.32 × 68,767.44 - Step 4: Simplify right side
102,130.08x = 10,529,761,185.82 - Step 5: Solve for x
x = 10,529,761,185.82/102,130.08 - Step 6: Final answer
x = 103,101.47
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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.