Finding the Fourth Proportional to 104,349.54, 143,981.36 and 66,124.02
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Solution
The fourth proportional to 104,349.54, 143,981.36 and 66,124.02 is: 91,237.84
Step by Step Solution
- Step 1: Write the proportion equation
104,349.54 : 143,981.36 = 66,124.02 : x - Step 2: Convert to fraction form
104,349.54/143,981.36 = 66,124.02/x - Step 3: Cross multiply
104,349.54x = 143,981.36 × 66,124.02 - Step 4: Simplify right side
104,349.54x = 9,520,626,328.27 - Step 5: Solve for x
x = 9,520,626,328.27/104,349.54 - Step 6: Final answer
x = 91,237.84
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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.