Finding the Fourth Proportional to 160,106.11, 220,948.07 and 87,511.07
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Solution
The fourth proportional to 160,106.11, 220,948.07 and 87,511.07 is: 120,766.17
Step by Step Solution
- Step 1: Write the proportion equation
160,106.11 : 220,948.07 = 87,511.07 : x - Step 2: Convert to fraction form
160,106.11/220,948.07 = 87,511.07/x - Step 3: Cross multiply
160,106.11x = 220,948.07 × 87,511.07 - Step 4: Simplify right side
160,106.11x = 19,335,402,020.13 - Step 5: Solve for x
x = 19,335,402,020.13/160,106.11 - Step 6: Final answer
x = 120,766.17
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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.