Finding the Fourth Proportional to 128,565.31, 192,748.06 and 48,601.99
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Solution
The fourth proportional to 128,565.31, 192,748.06 and 48,601.99 is: 72,865.22
Step by Step Solution
- Step 1: Write the proportion equation
128,565.31 : 192,748.06 = 48,601.99 : x - Step 2: Convert to fraction form
128,565.31/192,748.06 = 48,601.99/x - Step 3: Cross multiply
128,565.31x = 192,748.06 × 48,601.99 - Step 4: Simplify right side
128,565.31x = 9,367,939,284.64 - Step 5: Solve for x
x = 9,367,939,284.64/128,565.31 - Step 6: Final answer
x = 72,865.22
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.