Finding the Fourth Proportional to 147,390.09, 203,431.14 and 93,664.62
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Solution
The fourth proportional to 147,390.09, 203,431.14 and 93,664.62 is: 129,278.03
Step by Step Solution
- Step 1: Write the proportion equation
147,390.09 : 203,431.14 = 93,664.62 : x - Step 2: Convert to fraction form
147,390.09/203,431.14 = 93,664.62/x - Step 3: Cross multiply
147,390.09x = 203,431.14 × 93,664.62 - Step 4: Simplify right side
147,390.09x = 19,054,300,424.27 - Step 5: Solve for x
x = 19,054,300,424.27/147,390.09 - Step 6: Final answer
x = 129,278.03
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1.5x scale
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.