Finding the Fourth Proportional to 135,159.31, 202,822.35 and 68,647.18
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Solution
The fourth proportional to 135,159.31, 202,822.35 and 68,647.18 is: 103,013.11
Step by Step Solution
- Step 1: Write the proportion equation
135,159.31 : 202,822.35 = 68,647.18 : x - Step 2: Convert to fraction form
135,159.31/202,822.35 = 68,647.18/x - Step 3: Cross multiply
135,159.31x = 202,822.35 × 68,647.18 - Step 4: Simplify right side
135,159.31x = 13,923,181,011.13 - Step 5: Solve for x
x = 13,923,181,011.13/135,159.31 - Step 6: Final answer
x = 103,013.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.