Finding the Fourth Proportional to 190,642.19, 263,117.76 and 105,786.59
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Solution
The fourth proportional to 190,642.19, 263,117.76 and 105,786.59 is: 146,002.99
Step by Step Solution
- Step 1: Write the proportion equation
190,642.19 : 263,117.76 = 105,786.59 : x - Step 2: Convert to fraction form
190,642.19/263,117.76 = 105,786.59/x - Step 3: Cross multiply
190,642.19x = 263,117.76 × 105,786.59 - Step 4: Simplify right side
190,642.19x = 27,834,330,598.84 - Step 5: Solve for x
x = 27,834,330,598.84/190,642.19 - Step 6: Final answer
x = 146,002.99
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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.