Finding the Fourth Proportional to 107,122.19, 147,827.48 and 61,799.63
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Solution
The fourth proportional to 107,122.19, 147,827.48 and 61,799.63 is: 85,282.82
Step by Step Solution
- Step 1: Write the proportion equation
107,122.19 : 147,827.48 = 61,799.63 : x - Step 2: Convert to fraction form
107,122.19/147,827.48 = 61,799.63/x - Step 3: Cross multiply
107,122.19x = 147,827.48 × 61,799.63 - Step 4: Simplify right side
107,122.19x = 9,135,682,519.70 - Step 5: Solve for x
x = 9,135,682,519.70/107,122.19 - Step 6: Final answer
x = 85,282.82
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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.