Finding the Fourth Proportional to 107,072.94, 147,764.58 and 64,623.26
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Solution
The fourth proportional to 107,072.94, 147,764.58 and 64,623.26 is: 89,182.47
Step by Step Solution
- Step 1: Write the proportion equation
107,072.94 : 147,764.58 = 64,623.26 : x - Step 2: Convert to fraction form
107,072.94/147,764.58 = 64,623.26/x - Step 3: Cross multiply
107,072.94x = 147,764.58 × 64,623.26 - Step 4: Simplify right side
107,072.94x = 9,549,028,872.13 - Step 5: Solve for x
x = 9,549,028,872.13/107,072.94 - Step 6: Final answer
x = 89,182.47
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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.