Finding the Fourth Proportional to 101,651.84, 140,277.60 and 63,990.08
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Solution
The fourth proportional to 101,651.84, 140,277.60 and 63,990.08 is: 88,305.09
Step by Step Solution
- Step 1: Write the proportion equation
101,651.84 : 140,277.60 = 63,990.08 : x - Step 2: Convert to fraction form
101,651.84/140,277.60 = 63,990.08/x - Step 3: Cross multiply
101,651.84x = 140,277.60 × 63,990.08 - Step 4: Simplify right side
101,651.84x = 8,976,374,846.21 - Step 5: Solve for x
x = 8,976,374,846.21/101,651.84 - Step 6: Final answer
x = 88,305.09
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1.5x scale
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.