Finding the Fourth Proportional to 155,411.84, 214,467.36 and 88,343.84
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Solution
The fourth proportional to 155,411.84, 214,467.36 and 88,343.84 is: 121,913.94
Step by Step Solution
- Step 1: Write the proportion equation
155,411.84 : 214,467.36 = 88,343.84 : x - Step 2: Convert to fraction form
155,411.84/214,467.36 = 88,343.84/x - Step 3: Cross multiply
155,411.84x = 214,467.36 × 88,343.84 - Step 4: Simplify right side
155,411.84x = 18,946,870,137.06 - Step 5: Solve for x
x = 18,946,870,137.06/155,411.84 - Step 6: Final answer
x = 121,913.94
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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.