Finding the Fourth Proportional to 128,089.29, 192,174.91 and 61,534.08
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Solution
The fourth proportional to 128,089.29, 192,174.91 and 61,534.08 is: 92,320.80
Step by Step Solution
- Step 1: Write the proportion equation
128,089.29 : 192,174.91 = 61,534.08 : x - Step 2: Convert to fraction form
128,089.29/192,174.91 = 61,534.08/x - Step 3: Cross multiply
128,089.29x = 192,174.91 × 61,534.08 - Step 4: Simplify right side
128,089.29x = 11,825,306,285.93 - Step 5: Solve for x
x = 11,825,306,285.93/128,089.29 - Step 6: Final answer
x = 92,320.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.