Finding the Fourth Proportional to 188,326.67, 259,827.45 and 106,643.75
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Solution
The fourth proportional to 188,326.67, 259,827.45 and 106,643.75 is: 147,132.50
Step by Step Solution
- Step 1: Write the proportion equation
188,326.67 : 259,827.45 = 106,643.75 : x - Step 2: Convert to fraction form
188,326.67/259,827.45 = 106,643.75/x - Step 3: Cross multiply
188,326.67x = 259,827.45 × 106,643.75 - Step 4: Simplify right side
188,326.67x = 27,708,973,620.94 - Step 5: Solve for x
x = 27,708,973,620.94/188,326.67 - Step 6: Final answer
x = 147,132.50
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1.5x scale
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.