Finding the Fourth Proportional to 155,529.78, 214,697.31 and 104,572.08
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Solution
The fourth proportional to 155,529.78, 214,697.31 and 104,572.08 is: 144,353.99
Step by Step Solution
- Step 1: Write the proportion equation
155,529.78 : 214,697.31 = 104,572.08 : x - Step 2: Convert to fraction form
155,529.78/214,697.31 = 104,572.08/x - Step 3: Cross multiply
155,529.78x = 214,697.31 × 104,572.08 - Step 4: Simplify right side
155,529.78x = 22,451,344,277.10 - Step 5: Solve for x
x = 22,451,344,277.10/155,529.78 - Step 6: Final answer
x = 144,353.99
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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.