Finding the Fourth Proportional to 121,672.41, 167,871.21 and 70,675.23
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Solution
The fourth proportional to 121,672.41, 167,871.21 and 70,675.23 is: 97,510.49
Step by Step Solution
- Step 1: Write the proportion equation
121,672.41 : 167,871.21 = 70,675.23 : x - Step 2: Convert to fraction form
121,672.41/167,871.21 = 70,675.23/x - Step 3: Cross multiply
121,672.41x = 167,871.21 × 70,675.23 - Step 4: Simplify right side
121,672.41x = 11,864,336,377.13 - Step 5: Solve for x
x = 11,864,336,377.13/121,672.41 - Step 6: Final answer
x = 97,510.49
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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.