Finding the Fourth Proportional to 155,709.03, 214,878.46 and 84,089.05
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Solution
The fourth proportional to 155,709.03, 214,878.46 and 84,089.05 is: 116,042.88
Step by Step Solution
- Step 1: Write the proportion equation
155,709.03 : 214,878.46 = 84,089.05 : x - Step 2: Convert to fraction form
155,709.03/214,878.46 = 84,089.05/x - Step 3: Cross multiply
155,709.03x = 214,878.46 × 84,089.05 - Step 4: Simplify right side
155,709.03x = 18,068,924,072.03 - Step 5: Solve for x
x = 18,068,924,072.03/155,709.03 - Step 6: Final answer
x = 116,042.88
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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.