Finding the Fourth Proportional to 138,566.60, 207,330.84 and 98,677.74
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Solution
The fourth proportional to 138,566.60, 207,330.84 and 98,677.74 is: 147,646.98
Step by Step Solution
- Step 1: Write the proportion equation
138,566.60 : 207,330.84 = 98,677.74 : x - Step 2: Convert to fraction form
138,566.60/207,330.84 = 98,677.74/x - Step 3: Cross multiply
138,566.60x = 207,330.84 × 98,677.74 - Step 4: Simplify right side
138,566.60x = 20,458,939,500.99 - Step 5: Solve for x
x = 20,458,939,500.99/138,566.60 - Step 6: Final answer
x = 147,646.98
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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.