Finding the Fourth Proportional to 138,089.08, 206,989.98 and 93,719.44
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Solution
The fourth proportional to 138,089.08, 206,989.98 and 93,719.44 is: 140,481.67
Step by Step Solution
- Step 1: Write the proportion equation
138,089.08 : 206,989.98 = 93,719.44 : x - Step 2: Convert to fraction form
138,089.08/206,989.98 = 93,719.44/x - Step 3: Cross multiply
138,089.08x = 206,989.98 × 93,719.44 - Step 4: Simplify right side
138,089.08x = 19,398,985,011.21 - Step 5: Solve for x
x = 19,398,985,011.21/138,089.08 - Step 6: Final answer
x = 140,481.67
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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.