Finding the Fourth Proportional to 155,581.74, 214,251.08 and 135,154.53
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Solution
The fourth proportional to 155,581.74, 214,251.08 and 135,154.53 is: 186,120.83
Step by Step Solution
- Step 1: Write the proportion equation
155,581.74 : 214,251.08 = 135,154.53 : x - Step 2: Convert to fraction form
155,581.74/214,251.08 = 135,154.53/x - Step 3: Cross multiply
155,581.74x = 214,251.08 × 135,154.53 - Step 4: Simplify right side
155,581.74x = 28,957,003,343.62 - Step 5: Solve for x
x = 28,957,003,343.62/155,581.74 - Step 6: Final answer
x = 186,120.83
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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.