Finding the Fourth Proportional to 121,497.23, 182,098.08 and 85,968.78
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Solution
The fourth proportional to 121,497.23, 182,098.08 and 85,968.78 is: 128,848.61
Step by Step Solution
- Step 1: Write the proportion equation
121,497.23 : 182,098.08 = 85,968.78 : x - Step 2: Convert to fraction form
121,497.23/182,098.08 = 85,968.78/x - Step 3: Cross multiply
121,497.23x = 182,098.08 × 85,968.78 - Step 4: Simplify right side
121,497.23x = 15,654,749,777.94 - Step 5: Solve for x
x = 15,654,749,777.94/121,497.23 - Step 6: Final answer
x = 128,848.61
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1.5x scale
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.