Finding the Fourth Proportional to 130,645.44, 180,284.16 and 74,055.36
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Solution
The fourth proportional to 130,645.44, 180,284.16 and 74,055.36 is: 102,192.69
Step by Step Solution
- Step 1: Write the proportion equation
130,645.44 : 180,284.16 = 74,055.36 : x - Step 2: Convert to fraction form
130,645.44/180,284.16 = 74,055.36/x - Step 3: Cross multiply
130,645.44x = 180,284.16 × 74,055.36 - Step 4: Simplify right side
130,645.44x = 13,351,008,371.10 - Step 5: Solve for x
x = 13,351,008,371.10/130,645.44 - Step 6: Final answer
x = 102,192.69
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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.