Finding the Fourth Proportional to 88,281.06, 121,745.34 and 68,106.12
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Solution
The fourth proportional to 88,281.06, 121,745.34 and 68,106.12 is: 93,922.78
Step by Step Solution
- Step 1: Write the proportion equation
88,281.06 : 121,745.34 = 68,106.12 : x - Step 2: Convert to fraction form
88,281.06/121,745.34 = 68,106.12/x - Step 3: Cross multiply
88,281.06x = 121,745.34 × 68,106.12 - Step 4: Simplify right side
88,281.06x = 8,291,602,735.48 - Step 5: Solve for x
x = 8,291,602,735.48/88,281.06 - Step 6: Final answer
x = 93,922.78
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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.