Finding the Fourth Proportional to 99,397.46, 149,128.59 and 46,812.26
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Solution
The fourth proportional to 99,397.46, 149,128.59 and 46,812.26 is: 70,233.65
Step by Step Solution
- Step 1: Write the proportion equation
99,397.46 : 149,128.59 = 46,812.26 : x - Step 2: Convert to fraction form
99,397.46/149,128.59 = 46,812.26/x - Step 3: Cross multiply
99,397.46x = 149,128.59 × 46,812.26 - Step 4: Simplify right side
99,397.46x = 6,981,046,328.51 - Step 5: Solve for x
x = 6,981,046,328.51/99,397.46 - Step 6: Final answer
x = 70,233.65
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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.