Finding the Fourth Proportional to 128,660.14, 192,862.50 and 61,073.74
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Solution
The fourth proportional to 128,660.14, 192,862.50 and 61,073.74 is: 91,549.99
Step by Step Solution
- Step 1: Write the proportion equation
128,660.14 : 192,862.50 = 61,073.74 : x - Step 2: Convert to fraction form
128,660.14/192,862.50 = 61,073.74/x - Step 3: Cross multiply
128,660.14x = 192,862.50 × 61,073.74 - Step 4: Simplify right side
128,660.14x = 11,778,834,180.75 - Step 5: Solve for x
x = 11,778,834,180.75/128,660.14 - Step 6: Final answer
x = 91,549.99
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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.