Finding the Fourth Proportional to 124,412.20, 186,618.30 and 113,525.80
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Solution
The fourth proportional to 124,412.20, 186,618.30 and 113,525.80 is: 170,288.70
Step by Step Solution
- Step 1: Write the proportion equation
124,412.20 : 186,618.30 = 113,525.80 : x - Step 2: Convert to fraction form
124,412.20/186,618.30 = 113,525.80/x - Step 3: Cross multiply
124,412.20x = 186,618.30 × 113,525.80 - Step 4: Simplify right side
124,412.20x = 21,185,991,802.14 - Step 5: Solve for x
x = 21,185,991,802.14/124,412.20 - Step 6: Final answer
x = 170,288.70
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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.