Finding the Fourth Proportional to 104,402.64, 144,076.68 and 56,656.44
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Solution
The fourth proportional to 104,402.64, 144,076.68 and 56,656.44 is: 78,186.45
Step by Step Solution
- Step 1: Write the proportion equation
104,402.64 : 144,076.68 = 56,656.44 : x - Step 2: Convert to fraction form
104,402.64/144,076.68 = 56,656.44/x - Step 3: Cross multiply
104,402.64x = 144,076.68 × 56,656.44 - Step 4: Simplify right side
104,402.64x = 8,162,871,775.82 - Step 5: Solve for x
x = 8,162,871,775.82/104,402.64 - Step 6: Final answer
x = 78,186.45
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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.