Finding the Fourth Proportional to 101,965.97, 140,750.93 and 87,567.98
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Solution
The fourth proportional to 101,965.97, 140,750.93 and 87,567.98 is: 120,876.35
Step by Step Solution
- Step 1: Write the proportion equation
101,965.97 : 140,750.93 = 87,567.98 : x - Step 2: Convert to fraction form
101,965.97/140,750.93 = 87,567.98/x - Step 3: Cross multiply
101,965.97x = 140,750.93 × 87,567.98 - Step 4: Simplify right side
101,965.97x = 12,325,274,009.44 - Step 5: Solve for x
x = 12,325,274,009.44/101,965.97 - Step 6: Final answer
x = 120,876.35
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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.