Finding the Fourth Proportional to 107,107.71, 147,808.64 and 59,364.13
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Solution
The fourth proportional to 107,107.71, 147,808.64 and 59,364.13 is: 81,922.50
Step by Step Solution
- Step 1: Write the proportion equation
107,107.71 : 147,808.64 = 59,364.13 : x - Step 2: Convert to fraction form
107,107.71/147,808.64 = 59,364.13/x - Step 3: Cross multiply
107,107.71x = 147,808.64 × 59,364.13 - Step 4: Simplify right side
107,107.71x = 8,774,531,320.08 - Step 5: Solve for x
x = 8,774,531,320.08/107,107.71 - Step 6: Final answer
x = 81,922.50
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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.