Finding the Fourth Proportional to 106,868.64, 147,475.20 and 59,122.08
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Solution
The fourth proportional to 106,868.64, 147,475.20 and 59,122.08 is: 81,586.52
Step by Step Solution
- Step 1: Write the proportion equation
106,868.64 : 147,475.20 = 59,122.08 : x - Step 2: Convert to fraction form
106,868.64/147,475.20 = 59,122.08/x - Step 3: Cross multiply
106,868.64x = 147,475.20 × 59,122.08 - Step 4: Simplify right side
106,868.64x = 8,719,040,572.42 - Step 5: Solve for x
x = 8,719,040,572.42/106,868.64 - Step 6: Final answer
x = 81,586.52
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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.