Finding the Fourth Proportional to 106,028.84, 146,258.79 and 63,562.70
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Solution
The fourth proportional to 106,028.84, 146,258.79 and 63,562.70 is: 87,679.95
Step by Step Solution
- Step 1: Write the proportion equation
106,028.84 : 146,258.79 = 63,562.70 : x - Step 2: Convert to fraction form
106,028.84/146,258.79 = 63,562.70/x - Step 3: Cross multiply
106,028.84x = 146,258.79 × 63,562.70 - Step 4: Simplify right side
106,028.84x = 9,296,603,591.13 - Step 5: Solve for x
x = 9,296,603,591.13/106,028.84 - Step 6: Final answer
x = 87,679.95
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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.