Finding the Fourth Proportional to 145,391.26, 218,013.06 and 66,437.82
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Solution
The fourth proportional to 145,391.26, 218,013.06 and 66,437.82 is: 99,622.99
Step by Step Solution
- Step 1: Write the proportion equation
145,391.26 : 218,013.06 = 66,437.82 : x - Step 2: Convert to fraction form
145,391.26/218,013.06 = 66,437.82/x - Step 3: Cross multiply
145,391.26x = 218,013.06 × 66,437.82 - Step 4: Simplify right side
145,391.26x = 14,484,312,437.93 - Step 5: Solve for x
x = 14,484,312,437.93/145,391.26 - Step 6: Final answer
x = 99,622.99
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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.