Finding the Fourth Proportional to 106,816.96, 147,408.36 and 59,073.52
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Solution
The fourth proportional to 106,816.96, 147,408.36 and 59,073.52 is: 81,521.99
Step by Step Solution
- Step 1: Write the proportion equation
106,816.96 : 147,408.36 = 59,073.52 : x - Step 2: Convert to fraction form
106,816.96/147,408.36 = 59,073.52/x - Step 3: Cross multiply
106,816.96x = 147,408.36 × 59,073.52 - Step 4: Simplify right side
106,816.96x = 8,707,930,702.63 - Step 5: Solve for x
x = 8,707,930,702.63/106,816.96 - Step 6: Final answer
x = 81,521.99
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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.