Finding the Fourth Proportional to 101,652.84, 140,278.98 and 63,991.08
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Solution
The fourth proportional to 101,652.84, 140,278.98 and 63,991.08 is: 88,306.47
Step by Step Solution
- Step 1: Write the proportion equation
101,652.84 : 140,278.98 = 63,991.08 : x - Step 2: Convert to fraction form
101,652.84/140,278.98 = 63,991.08/x - Step 3: Cross multiply
101,652.84x = 140,278.98 × 63,991.08 - Step 4: Simplify right side
101,652.84x = 8,976,603,431.50 - Step 5: Solve for x
x = 8,976,603,431.50/101,652.84 - Step 6: Final answer
x = 88,306.47
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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.