Finding the Fourth Proportional to 121,000.68, 166,984.97 and 66,555.14
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Solution
The fourth proportional to 121,000.68, 166,984.97 and 66,555.14 is: 91,848.31
Step by Step Solution
- Step 1: Write the proportion equation
121,000.68 : 166,984.97 = 66,555.14 : x - Step 2: Convert to fraction form
121,000.68/166,984.97 = 66,555.14/x - Step 3: Cross multiply
121,000.68x = 166,984.97 × 66,555.14 - Step 4: Simplify right side
121,000.68x = 11,113,708,140.93 - Step 5: Solve for x
x = 11,113,708,140.93/121,000.68 - Step 6: Final answer
x = 91,848.31
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1.5x scale
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.