Finding the Fourth Proportional to 160,406.75, 221,419.73 and 93,338.75
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Solution
The fourth proportional to 160,406.75, 221,419.73 and 93,338.75 is: 128,841.47
Step by Step Solution
- Step 1: Write the proportion equation
160,406.75 : 221,419.73 = 93,338.75 : x - Step 2: Convert to fraction form
160,406.75/221,419.73 = 93,338.75/x - Step 3: Cross multiply
160,406.75x = 221,419.73 × 93,338.75 - Step 4: Simplify right side
160,406.75x = 20,667,040,823.54 - Step 5: Solve for x
x = 20,667,040,823.54/160,406.75 - Step 6: Final answer
x = 128,841.47
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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.