Finding the Fourth Proportional to 101,593.68, 140,199.12 and 56,881.68
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Solution
The fourth proportional to 101,593.68, 140,199.12 and 56,881.68 is: 78,496.63
Step by Step Solution
- Step 1: Write the proportion equation
101,593.68 : 140,199.12 = 56,881.68 : x - Step 2: Convert to fraction form
101,593.68/140,199.12 = 56,881.68/x - Step 3: Cross multiply
101,593.68x = 140,199.12 × 56,881.68 - Step 4: Simplify right side
101,593.68x = 7,974,761,480.12 - Step 5: Solve for x
x = 7,974,761,480.12/101,593.68 - Step 6: Final answer
x = 78,496.63
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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.