Finding the Fourth Proportional to 142,054.36, 212,878.50 and 104,318.44
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Solution
The fourth proportional to 142,054.36, 212,878.50 and 104,318.44 is: 156,328.56
Step by Step Solution
- Step 1: Write the proportion equation
142,054.36 : 212,878.50 = 104,318.44 : x - Step 2: Convert to fraction form
142,054.36/212,878.50 = 104,318.44/x - Step 3: Cross multiply
142,054.36x = 212,878.50 × 104,318.44 - Step 4: Simplify right side
142,054.36x = 22,207,153,029.54 - Step 5: Solve for x
x = 22,207,153,029.54/142,054.36 - Step 6: Final answer
x = 156,328.56
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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.