Finding the Fourth Proportional to 100,252.08, 138,338.69 and 57,802.41
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Solution
The fourth proportional to 100,252.08, 138,338.69 and 57,802.41 is: 79,762.03
Step by Step Solution
- Step 1: Write the proportion equation
100,252.08 : 138,338.69 = 57,802.41 : x - Step 2: Convert to fraction form
100,252.08/138,338.69 = 57,802.41/x - Step 3: Cross multiply
100,252.08x = 138,338.69 × 57,802.41 - Step 4: Simplify right side
100,252.08x = 7,996,309,389.23 - Step 5: Solve for x
x = 7,996,309,389.23/100,252.08 - Step 6: Final answer
x = 79,762.03
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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.