Finding the Fourth Proportional to 127,135.99, 175,479.92 and 86,866.03
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Solution
The fourth proportional to 127,135.99, 175,479.92 and 86,866.03 is: 119,897.16
Step by Step Solution
- Step 1: Write the proportion equation
127,135.99 : 175,479.92 = 86,866.03 : x - Step 2: Convert to fraction form
127,135.99/175,479.92 = 86,866.03/x - Step 3: Cross multiply
127,135.99x = 175,479.92 × 86,866.03 - Step 4: Simplify right side
127,135.99x = 15,243,243,995.12 - Step 5: Solve for x
x = 15,243,243,995.12/127,135.99 - Step 6: Final answer
x = 119,897.16
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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.