Finding the Fourth Proportional to 101,768.43, 140,449.05 and 56,460.99
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Solution
The fourth proportional to 101,768.43, 140,449.05 and 56,460.99 is: 77,920.95
Step by Step Solution
- Step 1: Write the proportion equation
101,768.43 : 140,449.05 = 56,460.99 : x - Step 2: Convert to fraction form
101,768.43/140,449.05 = 56,460.99/x - Step 3: Cross multiply
101,768.43x = 140,449.05 × 56,460.99 - Step 4: Simplify right side
101,768.43x = 7,929,892,407.56 - Step 5: Solve for x
x = 7,929,892,407.56/101,768.43 - Step 6: Final answer
x = 77,920.95
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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.