Finding the Fourth Proportional to 97,775.97, 146,767.68 and 86,603.88
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Solution
The fourth proportional to 97,775.97, 146,767.68 and 86,603.88 is: 129,997.69
Step by Step Solution
- Step 1: Write the proportion equation
97,775.97 : 146,767.68 = 86,603.88 : x - Step 2: Convert to fraction form
97,775.97/146,767.68 = 86,603.88/x - Step 3: Cross multiply
97,775.97x = 146,767.68 × 86,603.88 - Step 4: Simplify right side
97,775.97x = 12,710,650,546.60 - Step 5: Solve for x
x = 12,710,650,546.60/97,775.97 - Step 6: Final answer
x = 129,997.69
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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.