Finding the Fourth Proportional to 190,987.12, 263,562.12 and 106,112.08
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Solution
The fourth proportional to 190,987.12, 263,562.12 and 106,112.08 is: 146,434.61
Step by Step Solution
- Step 1: Write the proportion equation
190,987.12 : 263,562.12 = 106,112.08 : x - Step 2: Convert to fraction form
190,987.12/263,562.12 = 106,112.08/x - Step 3: Cross multiply
190,987.12x = 263,562.12 × 106,112.08 - Step 4: Simplify right side
190,987.12x = 27,967,124,762.41 - Step 5: Solve for x
x = 27,967,124,762.41/190,987.12 - Step 6: Final answer
x = 146,434.61
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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.